Zpool CHKSUM - Help needed

TrueNAS General
1

Hi guys,

Believe this is my first post here and not for good reasons, I’m currently losing my mind with my TrueNAS server and I need some help with further troubleshooting.

I’ve been running a system for about 2 years without any major issues however, everything changed a few weeks ago.

A few weeks ago, I replaced a Hard Drive with an 8Tb drive to start the upgrading process of my server, however, whilst I was preparing to leave my house, I heard a *beep* coming from my server. Immediatly after the beep, I heard a hard drive starting to spin, this repeated every 20s more or less. I immediately was concerned and thought that not enough power was reaching the drives which was causing one to turn off and back on. I turned one of the drives off during the resilvering and it stopped.

Once the resilvering was complete, I confirmed the Power Supply was failing by swapping the power supply with the one on my gaming PC. Easy fix, I bought a new corsair PSU, installed on my server, plugged back the hard drive and everything was fine, no more beeping. I ran the server for a week, no errors or anything. Everything was perfect.

Since the NAS was running for a week without any major errors and I had enough space in the case, I decided to add a new drive to the VDEV so I added the previously removed drive to the pool, resilvering went just as you would expect and like that, a new drive was added into the pool.

Shortly after doing this, I started getting ZFS CHKSUM errors in my pool. These errors seem to appear at random. I’ve tried swapping the SATA controller card with a ASM1166, errors still occur, I’ve tried checking my motherboard manual, noticed that it uses a ASM1062 on 2 ports and 2 Other ports are linked to the CPU, so I wired my 2 App SSDs to the CPU links, boot SSD to the ASM1062 and all hard drives to the external card, errors still come. I checked all the S.M.A.R.T Tests and noticed that my WD Red Pro drive was increasing the amount of reallocated sectors so I contacted WD Support which promptly asked me to send it to warranty (hence why the below zpool status -v command shows one less drive and is running in degraded state, drive is in transit and I’m waiting for the replacement). Upon removing this drive, I’m still getting the CHKSUM errors after removing the drive, so it doesn’t seem like the WD Red was causing these issues. I’m currently out of ideas for troubleshooting and I need some help as it’s driving me crazy. I’ve also used memtest86+ to test the RAM, no issues.

pool: Storage

state: DEGRADED

status: One or more devices has experienced an error resulting in data

corruption. Applications may be affected.

action: Restore the file in question if possible. Otherwise restore the

entire pool from backup.

scan: scrub repaired 0B in 05:29:09 with 0 errors on Fri Nov 7 22:42:56 2025

expand: expanded raidz2-0 copied 10.5T in 11:04:24, on Mon Oct 20 20:28:08 2025

config:

NAME STATE READ WRITE CKSUM

Storage DEGRADED 0 0 0

raidz2-0 DEGRADED 0 0 0

ca3b971e-5f7f-4081-94ca-06d366db6b6a ONLINE 0 0 6

ac38834c-ff49-48d9-a32f-c5b80f4fc040 ONLINE 0 0 4

5a8d152f-9119-41ea-b7f4-e99bbd917ff2 ONLINE 0 0 6

2d37cb88-640f-42c6-b361-57ff968e2a07 ONLINE 0 0 8

1337446035152578810 UNAVAIL 0 0 2 was /dev/disk/by-partuuid/b317f1cd-7c6b-454f-9beb-4379c36210db

errors: List of errors unavailable: no such pool or dataset

Current specs:

CPU: Intel J5005

Motherboard: Asrock J5005-ITX

RAM: 16GB non-ECC

PSU: Corsair RMe 650w

Boot pool: 1x 256GB SSD connected to ASM1062 port on the motherboard

Apps pool: 2x 512GB in mirror connected to the CPU Link.

Storage pool: 4x 4Tb + 1x8Tb in RAIDz2 connected to a ASM1166 card.

I planned to get a LSI card however, this motherboard doesn’t support it due to the PCI lane limitations and since I’m getting married next year, the server upgrade is planned for after the wedding. I’ve also tried swapping the SATA card as previously I had one ASM1062 installed but still getting errors after swapping it.

Thank you in advance

2

Do not take anything I say as beating on you, I try to not assume anything, to include your skill level or what you have or haven’t done.

I would need to see the SMART output for each drive, this command smartctl -x /dev/??? Post using the </> above to retain the format of the data. This is important so we can read it easier.

It would help to know what version of TrueNAS you are running.

Run zpool clear Storage and then check you pool status zpool status -v and report it as well. Have you run these commands before for this problem? It looks like you just ran a scrub yesterday.

Your SATA add-on card could be at fault, but I’m not suggesting you should replace it, yet.

Did you recently change your TrueNAS version? If you did, you might want to roll back to the previous version to see if the problems clear.

Now we wait for data to be posted….

1 Like
3

Hi joeschmuck,

Not at all, I don’t take any feedback in the wrong way, I’m here to learn and to identify the issue. Thank you for helping!

Leaving my S.M.A.R.T results for the Storage pool below:

/dev/sdb - this drive was affected by the PSU. Value of 458759 stopped raised once PSU was fixed

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   083   064   006    -    198980832
  3 Spin_Up_Time            PO----   096   095   000    -    0
  4 Start_Stop_Count        -O--CK   071   071   020    -    30599
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   083   060   045    -    195181724
  9 Power_On_Hours          -O--CK   081   081   000    -    16684
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    468
183 Runtime_Bad_Block       -O--CK   100   100   000    -    0
184 End-to-End_Error        -O--CK   100   100   099    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   099   000    -    458759
189 High_Fly_Writes         -O-RCK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   071   057   040    -    29 (Min/Max 27/32)
191 G-Sense_Error_Rate      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   100   100   000    -    462
193 Load_Cycle_Count        -O--CK   084   084   000    -    33267
194 Temperature_Celsius     -O---K   029   043   000    -    29 (0 18 0 0 0)
195 Hardware_ECC_Recovered  -O-RC-   083   064   000    -    198980832
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
198 Offline_Uncorrectable   ----C-   100   100   000    -    0
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   253   000    -    9375 (45 240 0)
241 Total_LBAs_Written      ------   100   253   000    -    22047091291
242 Total_LBAs_Read         ------   100   253   000    -    502894795945
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x0c       GPL     R/O   2048  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    512  Current Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS      24  Device vendor specific log
0xa2       GPL     VS    8160  Device vendor specific log
0xa6       GPL     VS     192  Device vendor specific log
0xa8-0xa9  GPL,SL  VS     136  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xb0       GPL     VS    9048  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc0       GPL,SL  VS       1  Device vendor specific log
0xc1       GPL,SL  VS      16  Device vendor specific log
0xc3       GPL,SL  VS       8  Device vendor specific log
0xc4       GPL,SL  VS      24  Device vendor specific log
0xd1       GPL     VS     264  Device vendor specific log
0xd3       GPL     VS    1920  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     16654         -
# 2  Extended offline    Completed without error       00%     16603         -
# 3  Short offline       Completed without error       00%     16533         -
# 4  Extended offline    Completed without error       00%     16510         -
# 5  Short offline       Completed without error       00%     16365         -
# 6  Short offline       Completed without error       00%     16277         -
# 7  Short offline       Completed without error       00%     16196         -
# 8  Conveyance offline  Completed without error       00%     16165         -
# 9  Short offline       Completed without error       00%     16165         -
#10  Extended offline    Completed without error       00%     16161         -
#11  Extended offline    Interrupted (host reset)      00%     16082         -
#12  Short offline       Completed without error       00%     16065         -
#13  Extended offline    Interrupted (host reset)      00%     16059         -
#14  Short offline       Completed without error       00%     15897         -
#15  Extended offline    Completed without error       00%     15802         -
#16  Short offline       Completed without error       00%     15729         -
#17  Short offline       Completed without error       00%     15561         -
#18  Short offline       Completed without error       00%     15393         -
#19  Short offline       Completed without error       00%     15225         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    29 Celsius
Power Cycle Min/Max Temperature:     27/32 Celsius
Lifetime    Min/Max Temperature:     18/43 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Temperature History Version:     2
Temperature Sampling Period:         3 minutes
Temperature Logging Interval:        94 minutes
Min/Max recommended Temperature:      1/61 Celsius
Min/Max Temperature Limit:            2/60 Celsius
Temperature History Size (Index):    128 (96)

Index    Estimated Time   Temperature Celsius
  97    2025-10-31 07:42    32  *************
  98    2025-10-31 09:16    32  *************
  99    2025-10-31 10:50    30  ***********
 100    2025-10-31 12:24    30  ***********
 101    2025-10-31 13:58    29  **********
 102    2025-10-31 15:32    29  **********
 103    2025-10-31 17:06    29  **********
 104    2025-10-31 18:40    30  ***********
 105    2025-10-31 20:14    30  ***********
 106    2025-10-31 21:48    30  ***********
 107    2025-10-31 23:22    31  ************
 108    2025-11-01 00:56    30  ***********
 109    2025-11-01 02:30    31  ************
 110    2025-11-01 04:04    31  ************
 111    2025-11-01 05:38    30  ***********
 112    2025-11-01 07:12    32  *************
 113    2025-11-01 08:46    31  ************
 ...    ..(  2 skipped).    ..  ************
 116    2025-11-01 13:28    31  ************
 117    2025-11-01 15:02    29  **********
 118    2025-11-01 16:36    29  **********
 119    2025-11-01 18:10    30  ***********
 120    2025-11-01 19:44    31  ************
 121    2025-11-01 21:18    30  ***********
 122    2025-11-01 22:52    30  ***********
 123    2025-11-02 00:26    29  **********
 ...    ..(  5 skipped).    ..  **********
   1    2025-11-02 09:50    29  **********
   2    2025-11-02 11:24    28  *********
   3    2025-11-02 12:58    28  *********
   4    2025-11-02 14:32    28  *********
   5    2025-11-02 16:06    29  **********
 ...    ..(  7 skipped).    ..  **********
  13    2025-11-03 04:38    29  **********
  14    2025-11-03 06:12    28  *********
 ...    ..(  3 skipped).    ..  *********
  18    2025-11-03 12:28    28  *********
  19    2025-11-03 14:02     ?  -
  20    2025-11-03 15:36    30  ***********
  21    2025-11-03 17:10     ?  -
  22    2025-11-03 18:44    30  ***********
  23    2025-11-03 20:18    32  *************
  24    2025-11-03 21:52    32  *************
  25    2025-11-03 23:26    31  ************
 ...    ..(  2 skipped).    ..  ************
  28    2025-11-04 04:08    31  ************
  29    2025-11-04 05:42    29  **********
 ...    ..(  5 skipped).    ..  **********
  35    2025-11-04 15:06    29  **********
  36    2025-11-04 16:40    30  ***********
  37    2025-11-04 18:14    30  ***********
  38    2025-11-04 19:48    30  ***********
  39    2025-11-04 21:22    31  ************
  40    2025-11-04 22:56    31  ************
  41    2025-11-05 00:30    30  ***********
  42    2025-11-05 02:04    32  *************
  43    2025-11-05 03:38    32  *************
  44    2025-11-05 05:12    32  *************
  45    2025-11-05 06:46    31  ************
  46    2025-11-05 08:20    30  ***********
  47    2025-11-05 09:54    29  **********
 ...    ..(  2 skipped).    ..  **********
  50    2025-11-05 14:36    29  **********
  51    2025-11-05 16:10    30  ***********
  52    2025-11-05 17:44    30  ***********
  53    2025-11-05 19:18    29  **********
  54    2025-11-05 20:52    30  ***********
  55    2025-11-05 22:26    30  ***********
  56    2025-11-06 00:00     ?  -
  57    2025-11-06 01:34    29  **********
  58    2025-11-06 03:08    31  ************
  59    2025-11-06 04:42    31  ************
  60    2025-11-06 06:16    30  ***********
  61    2025-11-06 07:50    28  *********
 ...    ..(  2 skipped).    ..  *********
  64    2025-11-06 12:32    28  *********
  65    2025-11-06 14:06     ?  -
  66    2025-11-06 15:40    24  *****
  67    2025-11-06 17:14    30  ***********
  68    2025-11-06 18:48    29  **********
  69    2025-11-06 20:22    29  **********
  70    2025-11-06 21:56    31  ************
  71    2025-11-06 23:30    31  ************
  72    2025-11-07 01:04    30  ***********
 ...    ..(  3 skipped).    ..  ***********
  76    2025-11-07 07:20    30  ***********
  77    2025-11-07 08:54    28  *********
  78    2025-11-07 10:28    29  **********
  79    2025-11-07 12:02     ?  -
  80    2025-11-07 13:36    28  *********
  81    2025-11-07 15:10    30  ***********
  82    2025-11-07 16:44    30  ***********
  83    2025-11-07 18:18    30  ***********
  84    2025-11-07 19:52    31  ************
  85    2025-11-07 21:26    31  ************
  86    2025-11-07 23:00    31  ************
  87    2025-11-08 00:34    29  **********
  88    2025-11-08 02:08    28  *********
  89    2025-11-08 03:42    28  *********
  90    2025-11-08 05:16    27  ********
 ...    ..(  2 skipped).    ..  ********
  93    2025-11-08 09:58    27  ********
  94    2025-11-08 11:32    28  *********
  95    2025-11-08 13:06    28  *********
  96    2025-11-08 14:40    29  **********

SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4             468  ---  Lifetime Power-On Resets
0x01  0x010  4           16684  ---  Power-on Hours
0x01  0x018  6     22047072755  ---  Logical Sectors Written
0x01  0x020  6       109291356  ---  Number of Write Commands
0x01  0x028  6    503315539190  ---  Logical Sectors Read
0x01  0x030  6       425254737  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4           10043  ---  Spindle Motor Power-on Hours
0x03  0x010  4            9382  ---  Head Flying Hours
0x03  0x018  4           33267  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               0  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4             462  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               7  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              29  ---  Current Temperature
0x05  0x010  1              28  ---  Average Short Term Temperature
0x05  0x018  1              31  ---  Average Long Term Temperature
0x05  0x020  1              43  ---  Highest Temperature
0x05  0x028  1              18  ---  Lowest Temperature
0x05  0x030  1              39  ---  Highest Average Short Term Temperature
0x05  0x038  1              20  ---  Lowest Average Short Term Temperature
0x05  0x040  1              32  ---  Highest Average Long Term Temperature
0x05  0x048  1              22  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              70  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4             127  ---  Number of Hardware Resets
0x06  0x010  4               7  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c)
No Defects Logged

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            4  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

Seagate FARM log (GP Log 0xa6) supported [try: -l farm]

/dev/sdd

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x73) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        No Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 455) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x70bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   080   064   006    -    99394296
  3 Spin_Up_Time            PO----   096   095   000    -    0
  4 Start_Stop_Count        -O--CK   071   071   020    -    30110
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   083   060   045    -    199816106
  9 Power_On_Hours          -O--CK   081   081   000    -    16707
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    78
183 Runtime_Bad_Block       -O--CK   100   100   000    -    0
184 End-to-End_Error        -O--CK   100   100   099    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   099   000    -    458759
189 High_Fly_Writes         -O-RCK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   071   057   040    -    29 (Min/Max 26/31)
191 G-Sense_Error_Rate      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   100   100   000    -    45
193 Load_Cycle_Count        -O--CK   084   084   000    -    32846
194 Temperature_Celsius     -O---K   029   043   000    -    29 (0 20 0 0 0)
195 Hardware_ECC_Recovered  -O-RC-   080   064   000    -    99394296
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
198 Offline_Uncorrectable   ----C-   100   100   000    -    0
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   253   000    -    9379 (166 58 0)
241 Total_LBAs_Written      ------   100   253   000    -    29810910185
242 Total_LBAs_Read         ------   100   253   000    -    518592847037
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x0c       GPL     R/O   2048  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    512  Current Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS      24  Device vendor specific log
0xa2       GPL     VS    8160  Device vendor specific log
0xa6       GPL     VS     192  Device vendor specific log
0xa8-0xa9  GPL,SL  VS     136  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xb0       GPL     VS    9048  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc0       GPL,SL  VS       1  Device vendor specific log
0xc1       GPL,SL  VS      16  Device vendor specific log
0xc3       GPL,SL  VS       8  Device vendor specific log
0xc4       GPL,SL  VS      24  Device vendor specific log
0xd1       GPL     VS     264  Device vendor specific log
0xd3       GPL     VS    1920  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     16677         -
# 2  Short offline       Completed without error       00%     16555         -
# 3  Extended offline    Completed without error       00%     16533         -
# 4  Short offline       Completed without error       00%     16388         -
# 5  Short offline       Completed without error       00%     16299         -
# 6  Short offline       Completed without error       00%     16218         -
# 7  Conveyance offline  Completed without error       00%     16188         -
# 8  Short offline       Completed without error       00%     16188         -
# 9  Extended offline    Completed without error       00%     16183         -
#10  Short offline       Completed without error       00%     16079         -
#11  Extended offline    Aborted by host               90%     16078         -
#12  Extended offline    Completed without error       00%     16026         -
#13  Short offline       Completed without error       00%     15953         -
#14  Short offline       Completed without error       00%     15785         -
#15  Short offline       Completed without error       00%     15617         -
#16  Short offline       Completed without error       00%     15449         -
#17  Extended offline    Completed without error       00%     15306         -
#18  Short offline       Completed without error       00%     15280         -
#19  Short offline       Completed without error       00%     15112         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    29 Celsius
Power Cycle Min/Max Temperature:     26/31 Celsius
Lifetime    Min/Max Temperature:     20/43 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Temperature History Version:     2
Temperature Sampling Period:         3 minutes
Temperature Logging Interval:        94 minutes
Min/Max recommended Temperature:      1/61 Celsius
Min/Max Temperature Limit:            2/60 Celsius
Temperature History Size (Index):    128 (6)

Index    Estimated Time   Temperature Celsius
   7    2025-10-31 07:42    33  **************
   8    2025-10-31 09:16    33  **************
   9    2025-10-31 10:50    33  **************
  10    2025-10-31 12:24    31  ************
  11    2025-10-31 13:58    31  ************
  12    2025-10-31 15:32    30  ***********
  13    2025-10-31 17:06    30  ***********
  14    2025-10-31 18:40    30  ***********
  15    2025-10-31 20:14    31  ************
  16    2025-10-31 21:48    31  ************
  17    2025-10-31 23:22    31  ************
  18    2025-11-01 00:56    32  *************
  19    2025-11-01 02:30    31  ************
  20    2025-11-01 04:04    32  *************
  21    2025-11-01 05:38    32  *************
  22    2025-11-01 07:12    31  ************
  23    2025-11-01 08:46    33  **************
  24    2025-11-01 10:20    33  **************
  25    2025-11-01 11:54    32  *************
  26    2025-11-01 13:28    32  *************
  27    2025-11-01 15:02    32  *************
  28    2025-11-01 16:36    30  ***********
  29    2025-11-01 18:10    30  ***********
  30    2025-11-01 19:44    31  ************
 ...    ..(  2 skipped).    ..  ************
  33    2025-11-02 00:26    31  ************
  34    2025-11-02 02:00    30  ***********
 ...    ..(  4 skipped).    ..  ***********
  39    2025-11-02 09:50    30  ***********
  40    2025-11-02 11:24    29  **********
 ...    ..(  2 skipped).    ..  **********
  43    2025-11-02 16:06    29  **********
  44    2025-11-02 17:40    30  ***********
 ...    ..(  7 skipped).    ..  ***********
  52    2025-11-03 06:12    30  ***********
  53    2025-11-03 07:46    29  **********
 ...    ..(  2 skipped).    ..  **********
  56    2025-11-03 12:28    29  **********
  57    2025-11-03 14:02    28  *********
  58    2025-11-03 15:36     ?  -
  59    2025-11-03 17:10    30  ***********
  60    2025-11-03 18:44     ?  -
  61    2025-11-03 20:18    30  ***********
  62    2025-11-03 21:52    33  **************
  63    2025-11-03 23:26    33  **************
  64    2025-11-04 01:00    32  *************
 ...    ..(  2 skipped).    ..  *************
  67    2025-11-04 05:42    32  *************
  68    2025-11-04 07:16    30  ***********
 ...    ..(  5 skipped).    ..  ***********
  74    2025-11-04 16:40    30  ***********
  75    2025-11-04 18:14    31  ************
 ...    ..(  7 skipped).    ..  ************
  83    2025-11-05 06:46    31  ************
  84    2025-11-05 08:20    30  ***********
 ...    ..(  4 skipped).    ..  ***********
  89    2025-11-05 16:10    30  ***********
  90    2025-11-05 17:44    31  ************
  91    2025-11-05 19:18    31  ************
  92    2025-11-05 20:52    30  ***********
  93    2025-11-05 22:26     ?  -
  94    2025-11-06 00:00    30  ***********
  95    2025-11-06 01:34    32  *************
  96    2025-11-06 03:08    31  ************
  97    2025-11-06 04:42    30  ***********
  98    2025-11-06 06:16    29  **********
 ...    ..(  2 skipped).    ..  **********
 101    2025-11-06 10:58    29  **********
 102    2025-11-06 12:32     ?  -
 103    2025-11-06 14:06    25  ******
 104    2025-11-06 15:40    29  **********
 105    2025-11-06 17:14    29  **********
 106    2025-11-06 18:48    28  *********
 107    2025-11-06 20:22    30  ***********
 ...    ..(  3 skipped).    ..  ***********
 111    2025-11-07 02:38    30  ***********
 112    2025-11-07 04:12    29  **********
 113    2025-11-07 05:46    29  **********
 114    2025-11-07 07:20    28  *********
 115    2025-11-07 08:54    28  *********
 116    2025-11-07 10:28     ?  -
 117    2025-11-07 12:02    29  **********
 ...    ..(  2 skipped).    ..  **********
 120    2025-11-07 16:44    29  **********
 121    2025-11-07 18:18    30  ***********
 122    2025-11-07 19:52    31  ************
 123    2025-11-07 21:26    30  ***********
 124    2025-11-07 23:00    28  *********
 125    2025-11-08 00:34    27  ********
 ...    ..(  2 skipped).    ..  ********
   0    2025-11-08 05:16    27  ********
   1    2025-11-08 06:50    26  *******
   2    2025-11-08 08:24    27  ********
   3    2025-11-08 09:58    27  ********
   4    2025-11-08 11:32    28  *********
   5    2025-11-08 13:06    28  *********
   6    2025-11-08 14:40    29  **********

SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4              78  ---  Lifetime Power-On Resets
0x01  0x010  4           16707  ---  Power-on Hours
0x01  0x018  6     29798310681  ---  Logical Sectors Written
0x01  0x020  6       154995920  ---  Number of Write Commands
0x01  0x028  6    518831653273  ---  Logical Sectors Read
0x01  0x030  6       612315180  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4           10093  ---  Spindle Motor Power-on Hours
0x03  0x010  4            9387  ---  Head Flying Hours
0x03  0x018  4           32846  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               0  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4              45  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               7  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              29  ---  Current Temperature
0x05  0x010  1              28  ---  Average Short Term Temperature
0x05  0x018  1              33  ---  Average Long Term Temperature
0x05  0x020  1              43  ---  Highest Temperature
0x05  0x028  1              20  ---  Lowest Temperature
0x05  0x030  1              38  ---  Highest Average Short Term Temperature
0x05  0x038  1              22  ---  Lowest Average Short Term Temperature
0x05  0x040  1              34  ---  Highest Average Long Term Temperature
0x05  0x048  1              24  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              70  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4             228  ---  Number of Hardware Resets
0x06  0x010  4              22  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c)
No Defects Logged

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            4  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

Seagate FARM log (GP Log 0xa6) supported [try: -l farm]

/dev/sde

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   081   064   006    -    118857104
  3 Spin_Up_Time            PO----   096   095   000    -    0
  4 Start_Stop_Count        -O--CK   069   069   020    -    31841
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   083   060   045    -    4486094915
  9 Power_On_Hours          -O--CK   081   081   000    -    16935
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   099   099   020    -    1779
183 Runtime_Bad_Block       -O--CK   100   100   000    -    0
184 End-to-End_Error        -O--CK   100   100   099    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   099   000    -    1
189 High_Fly_Writes         -O-RCK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   070   058   040    -    30 (Min/Max 28/33)
191 G-Sense_Error_Rate      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   100   100   000    -    1768
193 Load_Cycle_Count        -O--CK   083   083   000    -    35051
194 Temperature_Celsius     -O---K   030   042   000    -    30 (0 19 0 0 0)
195 Hardware_ECC_Recovered  -O-RC-   081   064   000    -    118857104
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
198 Offline_Uncorrectable   ----C-   100   100   000    -    0
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   253   000    -    9485 (161 17 0)
241 Total_LBAs_Written      ------   100   253   000    -    22039230505
242 Total_LBAs_Read         ------   100   253   000    -    494038950324
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x0c       GPL     R/O   2048  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    512  Current Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS      24  Device vendor specific log
0xa2       GPL     VS    8160  Device vendor specific log
0xa6       GPL     VS     192  Device vendor specific log
0xa8-0xa9  GPL,SL  VS     136  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xb0       GPL     VS    9048  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc0       GPL,SL  VS       1  Device vendor specific log
0xc1       GPL,SL  VS      16  Device vendor specific log
0xc3       GPL,SL  VS       8  Device vendor specific log
0xc4       GPL,SL  VS      24  Device vendor specific log
0xd1       GPL     VS     264  Device vendor specific log
0xd3       GPL     VS    1920  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     16905         -
# 2  Short offline       Completed without error       00%     16783         -
# 3  Extended offline    Completed without error       00%     16761         -
# 4  Short offline       Completed without error       00%     16616         -
# 5  Short offline       Completed without error       00%     16527         -
# 6  Short offline       Completed without error       00%     16447         -
# 7  Conveyance offline  Completed without error       00%     16416         -
# 8  Short offline       Completed without error       00%     16416         -
# 9  Extended offline    Completed without error       00%     16411         -
#10  Extended offline    Interrupted (host reset)      00%     16305         -
#11  Short offline       Completed without error       00%     16289         -
#12  Extended offline    Interrupted (host reset)      00%     16283         -
#13  Short offline       Completed without error       00%     16121         -
#14  Extended offline    Completed without error       00%     16026         -
#15  Short offline       Completed without error       00%     15953         -
#16  Short offline       Completed without error       00%     15785         -
#17  Short offline       Completed without error       00%     15617         -
#18  Short offline       Completed without error       00%     15449         -
#19  Extended offline    Completed without error       00%     15306         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    30 Celsius
Power Cycle Min/Max Temperature:     28/33 Celsius
Lifetime    Min/Max Temperature:     19/42 Celsius
Under/Over Temperature Limit Count:   0/0

SCT Temperature History Version:     2
Temperature Sampling Period:         3 minutes
Temperature Logging Interval:        94 minutes
Min/Max recommended Temperature:      1/61 Celsius
Min/Max Temperature Limit:            2/60 Celsius
Temperature History Size (Index):    128 (61)

Index    Estimated Time   Temperature Celsius
  62    2025-10-31 07:42    34  ***************
  63    2025-10-31 09:16    33  **************
  64    2025-10-31 10:50    33  **************
  65    2025-10-31 12:24    31  ************
  66    2025-10-31 13:58    31  ************
  67    2025-10-31 15:32    31  ************
  68    2025-10-31 17:06    30  ***********
  69    2025-10-31 18:40    31  ************
  70    2025-10-31 20:14    31  ************
  71    2025-10-31 21:48    32  *************
  72    2025-10-31 23:22    31  ************
  73    2025-11-01 00:56    33  **************
  74    2025-11-01 02:30    31  ************
  75    2025-11-01 04:04    32  *************
  76    2025-11-01 05:38    32  *************
  77    2025-11-01 07:12    31  ************
  78    2025-11-01 08:46    34  ***************
  79    2025-11-01 10:20    33  **************
  80    2025-11-01 11:54    33  **************
  81    2025-11-01 13:28    33  **************
  82    2025-11-01 15:02    32  *************
  83    2025-11-01 16:36    30  ***********
  84    2025-11-01 18:10    30  ***********
  85    2025-11-01 19:44    31  ************
  86    2025-11-01 21:18    32  *************
  87    2025-11-01 22:52    32  *************
  88    2025-11-02 00:26    31  ************
  89    2025-11-02 02:00    31  ************
  90    2025-11-02 03:34    30  ***********
 ...    ..(  2 skipped).    ..  ***********
  93    2025-11-02 08:16    30  ***********
  94    2025-11-02 09:50    31  ************
  95    2025-11-02 11:24    30  ***********
  96    2025-11-02 12:58    30  ***********
  97    2025-11-02 14:32    30  ***********
  98    2025-11-02 16:06    29  **********
  99    2025-11-02 17:40    30  ***********
 ...    ..(  9 skipped).    ..  ***********
 109    2025-11-03 09:20    30  ***********
 110    2025-11-03 10:54    29  **********
 111    2025-11-03 12:28    29  **********
 112    2025-11-03 14:02    29  **********
 113    2025-11-03 15:36     ?  -
 114    2025-11-03 17:10    30  ***********
 115    2025-11-03 18:44     ?  -
 116    2025-11-03 20:18    30  ***********
 117    2025-11-03 21:52    33  **************
 118    2025-11-03 23:26    33  **************
 119    2025-11-04 01:00    32  *************
 120    2025-11-04 02:34    33  **************
 121    2025-11-04 04:08    32  *************
 122    2025-11-04 05:42    32  *************
 123    2025-11-04 07:16    30  ***********
 ...    ..(  5 skipped).    ..  ***********
   1    2025-11-04 16:40    30  ***********
   2    2025-11-04 18:14    31  ************
   3    2025-11-04 19:48    31  ************
   4    2025-11-04 21:22    31  ************
   5    2025-11-04 22:56    32  *************
   6    2025-11-05 00:30    32  *************
   7    2025-11-05 02:04    31  ************
   8    2025-11-05 03:38    32  *************
   9    2025-11-05 05:12    32  *************
  10    2025-11-05 06:46    31  ************
  11    2025-11-05 08:20    31  ************
  12    2025-11-05 09:54    31  ************
  13    2025-11-05 11:28    30  ***********
 ...    ..(  2 skipped).    ..  ***********
  16    2025-11-05 16:10    30  ***********
  17    2025-11-05 17:44    32  *************
  18    2025-11-05 19:18    31  ************
  19    2025-11-05 20:52    31  ************
  20    2025-11-05 22:26     ?  -
  21    2025-11-06 00:00    31  ************
  22    2025-11-06 01:34    32  *************
  23    2025-11-06 03:08    32  *************
  24    2025-11-06 04:42    31  ************
  25    2025-11-06 06:16    30  ***********
  26    2025-11-06 07:50    30  ***********
  27    2025-11-06 09:24    29  **********
  28    2025-11-06 10:58    29  **********
  29    2025-11-06 12:32     ?  -
  30    2025-11-06 14:06    25  ******
  31    2025-11-06 15:40    31  ************
  32    2025-11-06 17:14    30  ***********
  33    2025-11-06 18:48    30  ***********
  34    2025-11-06 20:22    32  *************
  35    2025-11-06 21:56    32  *************
  36    2025-11-06 23:30    32  *************
  37    2025-11-07 01:04    31  ************
 ...    ..(  2 skipped).    ..  ************
  40    2025-11-07 05:46    31  ************
  41    2025-11-07 07:20    29  **********
  42    2025-11-07 08:54    30  ***********
  43    2025-11-07 10:28     ?  -
  44    2025-11-07 12:02    30  ***********
  45    2025-11-07 13:36    31  ************
  46    2025-11-07 15:10    30  ***********
  47    2025-11-07 16:44    30  ***********
  48    2025-11-07 18:18    32  *************
  49    2025-11-07 19:52    32  *************
  50    2025-11-07 21:26    32  *************
  51    2025-11-07 23:00    30  ***********
  52    2025-11-08 00:34    29  **********
  53    2025-11-08 02:08    29  **********
  54    2025-11-08 03:42    29  **********
  55    2025-11-08 05:16    28  *********
  56    2025-11-08 06:50    28  *********
  57    2025-11-08 08:24    28  *********
  58    2025-11-08 09:58    29  **********
  59    2025-11-08 11:32    29  **********
  60    2025-11-08 13:06    30  ***********
  61    2025-11-08 14:40    30  ***********

SCT Error Recovery Control:
           Read: Disabled
          Write: Disabled

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4            1779  ---  Lifetime Power-On Resets
0x01  0x010  4           16935  ---  Power-on Hours
0x01  0x018  6     22007544097  ---  Logical Sectors Written
0x01  0x020  6       112432342  ---  Number of Write Commands
0x01  0x028  6    494249309247  ---  Logical Sectors Read
0x01  0x030  6       517331278  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4           10308  ---  Spindle Motor Power-on Hours
0x03  0x010  4            9491  ---  Head Flying Hours
0x03  0x018  4           35051  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               0  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4            1768  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               1  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              30  ---  Current Temperature
0x05  0x010  1              29  ---  Average Short Term Temperature
0x05  0x018  1              32  ---  Average Long Term Temperature
0x05  0x020  1              42  ---  Highest Temperature
0x05  0x028  1              19  ---  Lowest Temperature
0x05  0x030  1              38  ---  Highest Average Short Term Temperature
0x05  0x038  1              21  ---  Lowest Average Short Term Temperature
0x05  0x040  1              34  ---  Highest Average Long Term Temperature
0x05  0x048  1              23  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              70  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4             206  ---  Number of Hardware Resets
0x06  0x010  4               6  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c)
No Defects Logged

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            4  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

Seagate FARM log (GP Log 0xa6) supported [try: -l farm]

/dev/sdf

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   083   064   044    -    180875608
  3 Spin_Up_Time            PO----   091   090   000    -    0
  4 Start_Stop_Count        -O--CK   100   100   020    -    585
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   078   060   045    -    57179201
  9 Power_On_Hours          -O--CK   099   099   000    -    925
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    20
 18 Head_Health             PO-R--   100   100   050    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   068   050   000    -    32 (Min/Max 29/35)
192 Power-Off_Retract_Count -O--CK   100   100   000    -    6
193 Load_Cycle_Count        -O--CK   100   100   000    -    1402
194 Temperature_Celsius     -O---K   032   050   000    -    32 (0 23 0 0 0)
197 Current_Pending_Sector  -O--C-   100   100   000    -    0
198 Offline_Uncorrectable   ----C-   100   100   000    -    0
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   100   000    -    680h+22m+18.019s
241 Total_LBAs_Written      ------   100   253   000    -    15165085664
242 Total_LBAs_Read         ------   100   253   000    -    113845422817
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL     R/O    256  Device Statistics log
0x04       SL      R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x08       GPL     R/O      2  Power Conditions log
0x09           SL  R/W      1  Selective self-test log
0x0a       GPL     R/W      8  Device Statistics Notification
0x0c       GPL     R/O   2048  Pending Defects log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x13       GPL     R/O      1  SATA NCQ Send and Receive log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    768  Current Device Internal Status Data log
0x2f       GPL     R/O      1  Set Sector Configuration
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS     160  Device vendor specific log
0xa2       GPL     VS   16320  Device vendor specific log
0xa4       GPL,SL  VS     160  Device vendor specific log
0xa6       GPL     VS     192  Device vendor specific log
0xa8-0xa9  GPL,SL  VS     136  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xad       GPL     VS      16  Device vendor specific log
0xb1       GPL,SL  VS     160  Device vendor specific log
0xb6       GPL     VS    1920  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc1       GPL,SL  VS       8  Device vendor specific log
0xc3       GPL,SL  VS      24  Device vendor specific log
0xc6       GPL     VS    5184  Device vendor specific log
0xc7       GPL,SL  VS       8  Device vendor specific log
0xc9       GPL,SL  VS       8  Device vendor specific log
0xca       GPL,SL  VS      16  Device vendor specific log
0xcd       GPL,SL  VS       1  Device vendor specific log
0xce       GPL     VS       1  Device vendor specific log
0xcf       GPL     VS     512  Device vendor specific log
0xd1       GPL     VS     656  Device vendor specific log
0xd2       GPL     VS   10256  Device vendor specific log
0xd4       GPL     VS    2048  Device vendor specific log
0xda       GPL,SL  VS       1  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

SMART Extended Comprehensive Error Log Version: 1 (5 sectors)
No Errors Logged

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%       895         -
# 2  Short offline       Completed without error       00%       774         -
# 3  Extended offline    Completed without error       00%       755         -
# 4  Short offline       Completed without error       00%       606         -
# 5  Short offline       Aborted by host               40%       518         -
# 6  Short offline       Completed without error       00%       437         -
# 7  Conveyance offline  Completed without error       00%       406         -
# 8  Short offline       Completed without error       00%       406         -
# 9  Extended offline    Completed without error       00%       405         -
#10  Extended offline    Interrupted (host reset)      00%       296         -
#11  Short offline       Completed without error       00%       279         -
#12  Extended offline    Aborted by host               90%       273         -
#13  Short offline       Completed without error       00%       111         -
#14  Extended offline    Interrupted (host reset)      00%        19         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    32 Celsius
Power Cycle Min/Max Temperature:     29/35 Celsius
Lifetime    Min/Max Temperature:     23/50 Celsius
Under/Over Temperature Limit Count:   0/29
SMART Status:                        0xc24f (PASSED)
Vendor specific:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 03 00 00 00 00 00 00 00 00 00 00 00

SCT Temperature History Version:     2
Temperature Sampling Period:         4 minutes
Temperature Logging Interval:        59 minutes
Min/Max recommended Temperature:     10/25 Celsius
Min/Max Temperature Limit:            5/70 Celsius
Temperature History Size (Index):    128 (68)

Index    Estimated Time   Temperature Celsius
  69    2025-11-03 10:33    35  ****************
  70    2025-11-03 11:32    41  **********************
 ...    ..(  2 skipped).    ..  **********************
  73    2025-11-03 14:29    41  **********************
  74    2025-11-03 15:28    39  ********************
  75    2025-11-03 16:27    40  *********************
  76    2025-11-03 17:26    41  **********************
  77    2025-11-03 18:25    40  *********************
  78    2025-11-03 19:24    40  *********************
  79    2025-11-03 20:23    38  *******************
  80    2025-11-03 21:22    36  *****************
 ...    ..( 10 skipped).    ..  *****************
  91    2025-11-04 08:11    36  *****************
  92    2025-11-04 09:10    37  ******************
 ...    ..(  3 skipped).    ..  ******************
  96    2025-11-04 13:06    37  ******************
  97    2025-11-04 14:05    38  *******************
  98    2025-11-04 15:04    38  *******************
  99    2025-11-04 16:03    37  ******************
 100    2025-11-04 17:02    37  ******************
 101    2025-11-04 18:01    38  *******************
 ...    ..(  2 skipped).    ..  *******************
 104    2025-11-04 20:58    38  *******************
 105    2025-11-04 21:57    37  ******************
 106    2025-11-04 22:56    37  ******************
 107    2025-11-04 23:55    37  ******************
 108    2025-11-05 00:54    36  *****************
 ...    ..(  6 skipped).    ..  *****************
 115    2025-11-05 07:47    36  *****************
 116    2025-11-05 08:46    37  ******************
 117    2025-11-05 09:45    37  ******************
 118    2025-11-05 10:44    37  ******************
 119    2025-11-05 11:43    36  *****************
 120    2025-11-05 12:42    37  ******************
 ...    ..(  2 skipped).    ..  ******************
 123    2025-11-05 15:39    37  ******************
 124    2025-11-05 16:38    38  *******************
 125    2025-11-05 17:37    37  ******************
 126    2025-11-05 18:36     ?  -
 127    2025-11-05 19:35    37  ******************
   0    2025-11-05 20:34    40  *********************
 ...    ..(  2 skipped).    ..  *********************
   3    2025-11-05 23:31    40  *********************
   4    2025-11-06 00:30    37  ******************
   5    2025-11-06 01:29    36  *****************
   6    2025-11-06 02:28    35  ****************
 ...    ..(  5 skipped).    ..  ****************
  12    2025-11-06 08:22    35  ****************
  13    2025-11-06 09:21    36  *****************
  14    2025-11-06 10:20    37  ******************
  15    2025-11-06 11:19    37  ******************
  16    2025-11-06 12:18     ?  -
  17    2025-11-06 13:17    23  ****
  18    2025-11-06 14:16    32  *************
 ...    ..(  4 skipped).    ..  *************
  23    2025-11-06 19:11    32  *************
  24    2025-11-06 20:10    33  **************
  25    2025-11-06 21:09    33  **************
  26    2025-11-06 22:08    34  ***************
  27    2025-11-06 23:07    34  ***************
  28    2025-11-07 00:06    33  **************
 ...    ..(  2 skipped).    ..  **************
  31    2025-11-07 03:03    33  **************
  32    2025-11-07 04:02    32  *************
  33    2025-11-07 05:01    33  **************
  34    2025-11-07 06:00    31  ************
  35    2025-11-07 06:59    31  ************
  36    2025-11-07 07:58    31  ************
  37    2025-11-07 08:57    32  *************
  38    2025-11-07 09:56    32  *************
  39    2025-11-07 10:55     ?  -
  40    2025-11-07 11:54    31  ************
  41    2025-11-07 12:53    33  **************
  42    2025-11-07 13:52    32  *************
 ...    ..(  2 skipped).    ..  *************
  45    2025-11-07 16:49    32  *************
  46    2025-11-07 17:48    35  ****************
  47    2025-11-07 18:47    34  ***************
  48    2025-11-07 19:46    35  ****************
  49    2025-11-07 20:45    35  ****************
  50    2025-11-07 21:44    34  ***************
  51    2025-11-07 22:43    32  *************
  52    2025-11-07 23:42    31  ************
  53    2025-11-08 00:41    31  ************
  54    2025-11-08 01:40    30  ***********
 ...    ..(  3 skipped).    ..  ***********
  58    2025-11-08 05:36    30  ***********
  59    2025-11-08 06:35    29  **********
  60    2025-11-08 07:34    29  **********
  61    2025-11-08 08:33    30  ***********
  62    2025-11-08 09:32    30  ***********
  63    2025-11-08 10:31    30  ***********
  64    2025-11-08 11:30    31  ************
  65    2025-11-08 12:29    31  ************
  66    2025-11-08 13:28    31  ************
  67    2025-11-08 14:27    32  *************
  68    2025-11-08 15:26    32  *************

SCT Error Recovery Control:
           Read:     70 (7.0 seconds)
          Write:     70 (7.0 seconds)

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4              20  ---  Lifetime Power-On Resets
0x01  0x010  4             925  ---  Power-on Hours
0x01  0x018  6     15164970192  ---  Logical Sectors Written
0x01  0x020  6        88828137  ---  Number of Write Commands
0x01  0x028  6    113821659708  ---  Logical Sectors Read
0x01  0x030  6       273789181  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4             731  ---  Spindle Motor Power-on Hours
0x03  0x010  4             679  ---  Head Flying Hours
0x03  0x018  4            1402  ---  Head Load Events
0x03  0x020  4               0  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               0  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4               6  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x04  0x018  4               0  -D-  Physical Element Status Changed
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              32  ---  Current Temperature
0x05  0x010  1              31  ---  Average Short Term Temperature
0x05  0x018  1               -  ---  Average Long Term Temperature
0x05  0x020  1              50  ---  Highest Temperature
0x05  0x028  1              25  ---  Lowest Temperature
0x05  0x030  1              47  ---  Highest Average Short Term Temperature
0x05  0x038  1              30  ---  Lowest Average Short Term Temperature
0x05  0x040  1               -  ---  Highest Average Long Term Temperature
0x05  0x048  1               -  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              70  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               5  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4              41  ---  Number of Hardware Resets
0x06  0x010  4               5  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0xff  =====  =               =  ===  == Vendor Specific Statistics (rev 1) ==
0xff  0x010  7               0  ---  Vendor Specific
0xff  0x018  7               0  ---  Vendor Specific
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c)
No Defects Logged

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            3  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

Seagate FARM log (GP Log 0xa6) supported [try: -l farm]
4

I forgot to mention, I’ve tried clearing the pool with zpool clear Storage a few times, ran scrub every single time after the clear but the errors always return after a few hours. I’ve also re-seated the SATA cables for all drives (haven’t swapped them yet)

5

To rule out RAM, can you run a memtest for several passes or overnight if feasible?

2 Likes
6

Hi winnielinnie,

I’ve ran 4 passes of memtest86+ without any issues. Is it recommended to do more?

I’ve done this before and after upgrading to the newest version of TrueNAS (in a desperate attempt to see if it would stop).

1 Like
7

I missed that in your post, sorry.

I’m an underground memtest dealer. I get kickbacks for pushing this stuff on the youth.

2 Likes
8

Hi, can you please remove one stick of RAM? That CPU officially supports 8GB. Above that, some people on the internet reported stability issues (random, most of the time a kernel panic). Please just give it a shot :upside_down_face:

This is not related to the memtest, this is a memory management related thing. The problem may occur when the RAM usage (allocated) exceeds the 8GB boundary. As far as I heard, the memory controller starts paging then, and that may cause unknown behavior, so look at this as a hardware limitation.

I actually ran into this myself with a J4205 a few years ago… :sweat_smile:

3 Likes
9

I haven’t actually considered this, thanks for the tip. I’ll now remove one of the RAM sticks and test it.

10

Let’s see what happens. Even if it doesn’t solve the issue, it is good to rule this out at least.

1 Like
11

Are these Seagate drives? Given some of the raw values I’m guessing they should be.

Seagate translate - replace sd’x’ as needed--------
smartctl -a -v 1,raw48:54 /dev/sdx -v 7,raw48:54 -v 195,raw48:54

Add/remove a -v ###,raw48:54 as needed (### being replaced with parameter of interest)- some of these drives have different parameters of interest than what I’m used to & I’m too lazy to type out a custom command per drive. sudo in front of the command if you’re not running as root/admin. Realistically we want things like seek/read errors, uncorrected errors, crc errors, pending/uncorrectable sectors, etc to be either 0 or a low non-increasing value.

Unlike Joe, I’m more inclined to blame the sata cards; are the drives erroring out connected to the sata cards? If you move them over to the motherboard directly, do the errors follow the drive or does the drive connected to the sata card start creating problems? Might be worth looking into an HBA.

3 Likes
12

Hi Fleshmauler,

Indeed these are Seagate Ironwolf drives. I’ve been monitoring the logs of some drives since the PSU failure with smartctl -a /dev/sdX (same command to all drives, including the WD Red which failed). Maybe I should start logging these drives to a file and I could post prior and post error?

This night, before removing one of the RAMs, I’ve tried removing the power saving settings and let the disks always on as they should, it lasted until at least 02:00 in the morning before failing as this morning I had once again, the CHKSUM errors. What’s weird to me is that the errors occur in all drives, even in the one that isn’t there…

Answering your question about the HDDs, even connected to the board, yes, the errors do follow them as they were initially connected to the motherboard and SATA controller (had 2 in the motherboard and 3 in the SATA Controller for better performance).

Unfortunately, I cannot get an HBA card to put on this system as the PCI is only a PCIe Gen 2.0 1x slot. I do plan to do a system upgrade as this hobby grew on me but can only do it after my wedding.

I’ve now removed the second stick of RAM from the NAS and waiting to see if the errors come up again.

Before removing the stick, I’ve also done a stress test using: sudo dd if=/dev/zero of=/mnt/Storage/testbench/testfile bs=1G count=64 oflag=dsync status=progress

No errors were shown during the test. I’ve tested both Hard drives and SSDs without any issues (i’ve decided to test both to see if there was any limitation that I was unaware of).

Could it be possible these are residual errors that are part of the metadata somehow or I’m just desperate to find an answer and this doesn’t even make sense? The reason why I’m saying this is because when I first hard all the failures, I got some corrupted files and upon deleting them from my pool, zpool status -v showed an error on a file as: Storage/pessoal/Pedro:<0x80c3>

In order to get rid of this, I had to move the data inside the dataset to a different one, delete the old dataset, create the dataset once again as I wanted, and move back the data.

1 Like
13

Unfortunant, but since the errors follow the drives, I guess there is a solid chance it is the drives themselves.

I’d still run the smartctl command I gave to translate the raw values for the seagate smart fields, that gives you a readable number. If the drives tehmselves are reporting bad sectors, then no other tests are really needed :frowning:

1 Like
14

thanks, I just arrived home, so far no errors in the pool (but also no load the entire day).

I wasn’t aware until your post that for seagate drives the smartctl command had to be different, thank you very much for providing the command! All the 4 drive currently in the pool are ironwolf drives

/dev/sdb

=== START OF INFORMATION SECTION ===
Device Model:     ST4000VN006-3CW104
Serial Number:    
LU WWN Device Id: 5 000c50 0e5f0439e
Firmware Version: SC60
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Form Factor:      3.5 inches
Device is:        Not in smartctl database 7.3/5528
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Nov  9 21:10:14 2025 WET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x73) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        No Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 450) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x70bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   070   064   006    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0003   096   095   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   069   069   020    Old_age   Always       -       31842
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   083   060   045    Pre-fail  Always       -       1
  9 Power_On_Hours          0x0032   081   081   000    Old_age   Always       -       16964
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   099   099   020    Old_age   Always       -       1780
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   099   000    Old_age   Always       -       1
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   071   058   040    Old_age   Always       -       29 (Min/Max 28/32)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       1768
193 Load_Cycle_Count        0x0032   083   083   000    Old_age   Always       -       35052
194 Temperature_Celsius     0x0022   029   042   000    Old_age   Always       -       29 (0 19 0 0 0)
195 Hardware_ECC_Recovered  0x001a   070   064   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       9515 (19 160 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       22054911593
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       498062341961

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     16949         -
# 2  Short offline       Completed without error       00%     16905         -
# 3  Short offline       Completed without error       00%     16783         -
# 4  Extended offline    Completed without error       00%     16761         -
# 5  Short offline       Completed without error       00%     16616         -
# 6  Short offline       Completed without error       00%     16527         -
# 7  Short offline       Completed without error       00%     16447         -
# 8  Conveyance offline  Completed without error       00%     16416         -
# 9  Short offline       Completed without error       00%     16416         -
#10  Extended offline    Completed without error       00%     16411         -
#11  Extended offline    Interrupted (host reset)      00%     16305         -
#12  Short offline       Completed without error       00%     16289         -
#13  Extended offline    Interrupted (host reset)      00%     16283         -
#14  Short offline       Completed without error       00%     16121         -
#15  Extended offline    Completed without error       00%     16026         -
#16  Short offline       Completed without error       00%     15953         -
#17  Short offline       Completed without error       00%     15785         -
#18  Short offline       Completed without error       00%     15617         -
#19  Short offline       Completed without error       00%     15449         -
#20  Extended offline    Completed without error       00%     15306         -
#21  Short offline       Completed without error       00%     15281         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

/dev/sdd

=== START OF INFORMATION SECTION ===
Device Model:     ST4000VN006-3CW104
Serial Number:    
LU WWN Device Id: 5 000c50 0f2777397
Firmware Version: SC60
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Form Factor:      3.5 inches
Device is:        Not in smartctl database 7.3/5528
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Nov  9 21:12:30 2025 WET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x73) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        No Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 468) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x70bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   100   064   006    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0003   096   095   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   071   071   020    Old_age   Always       -       30600
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   083   060   045    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   081   081   000    Old_age   Always       -       16714
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       469
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   099   000    Old_age   Always       -       458759
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   072   057   040    Old_age   Always       -       28 (Min/Max 27/31)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       462
193 Load_Cycle_Count        0x0032   084   084   000    Old_age   Always       -       33268
194 Temperature_Celsius     0x0022   028   043   000    Old_age   Always       -       28 (0 18 0 0 0)
195 Hardware_ECC_Recovered  0x001a   100   064   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       9405 (25 248 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       22063036603
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       506917678206

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     16698         -
# 2  Short offline       Completed without error       00%     16654         -
# 3  Extended offline    Completed without error       00%     16603         -
# 4  Short offline       Completed without error       00%     16533         -
# 5  Extended offline    Completed without error       00%     16510         -
# 6  Short offline       Completed without error       00%     16365         -
# 7  Short offline       Completed without error       00%     16277         -
# 8  Short offline       Completed without error       00%     16196         -
# 9  Conveyance offline  Completed without error       00%     16165         -
#10  Short offline       Completed without error       00%     16165         -
#11  Extended offline    Completed without error       00%     16161         -
#12  Extended offline    Interrupted (host reset)      00%     16082         -
#13  Short offline       Completed without error       00%     16065         -
#14  Extended offline    Interrupted (host reset)      00%     16059         -
#15  Short offline       Completed without error       00%     15897         -
#16  Extended offline    Completed without error       00%     15802         -
#17  Short offline       Completed without error       00%     15729         -
#18  Short offline       Completed without error       00%     15561         -
#19  Short offline       Completed without error       00%     15393         -
#20  Short offline       Completed without error       00%     15225         -
#21  Extended offline    Completed without error       00%     15082         -

/dev/sdf

=== START OF INFORMATION SECTION ===
Model Family:     Seagate IronWolf
Device Model:     ST8000VN004-3CP101
Serial Number:    
LU WWN Device Id: 5 000c50 0fb7fcf6e
Firmware Version: SC60
User Capacity:    8,001,563,222,016 bytes [8.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-4 (minor revision not indicated)
SATA Version is:  SATA 3.3, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Nov  9 21:14:18 2025 WET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82) Offline data collection activity
                                        was completed without error.
                                        Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (  567) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 703) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x50bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   078   064   044    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0003   090   090   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       586
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   078   060   045    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       955
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       21
 18 Head_Health             0x000b   100   100   050    Pre-fail  Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   070   050   000    Old_age   Always       -       30 (Min/Max 30/34)
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       6
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       1403
194 Temperature_Celsius     0x0022   030   050   000    Old_age   Always       -       30 (0 23 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   100   000    Old_age   Offline      -       709h+48m+40.587s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       15180743104
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       117867646869

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%       940         -
# 2  Short offline       Completed without error       00%       895         -
# 3  Short offline       Completed without error       00%       774         -
# 4  Extended offline    Completed without error       00%       755         -
# 5  Short offline       Completed without error       00%       606         -
# 6  Short offline       Aborted by host               40%       518         -
# 7  Short offline       Completed without error       00%       437         -
# 8  Conveyance offline  Completed without error       00%       406         -
# 9  Short offline       Completed without error       00%       406         -
#10  Extended offline    Completed without error       00%       405         -
#11  Extended offline    Interrupted (host reset)      00%       296         -
#12  Short offline       Completed without error       00%       279         -
#13  Extended offline    Aborted by host               90%       273         -
#14  Short offline       Completed without error       00%       111         -
#15  Extended offline    Interrupted (host reset)      00%        19         -

/dev/sde

=== START OF INFORMATION SECTION ===
Device Model:     ST4000VN006-3CW104
Serial Number:    
LU WWN Device Id: 5 000c50 0e5f093df
Firmware Version: SC60
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Form Factor:      3.5 inches
Device is:        Not in smartctl database 7.3/5528
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sun Nov  9 21:15:08 2025 WET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                                        without error or no self-test has ever
                                        been run.
Total time to complete Offline
data collection:                (    0) seconds.
Offline data collection
capabilities:                    (0x73) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        No Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 455) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x70bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   100   064   006    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0003   096   095   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   071   071   020    Old_age   Always       -       30111
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   083   060   045    Pre-fail  Always       -       0
  9 Power_On_Hours          0x0032   081   081   000    Old_age   Always       -       16736
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       79
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   099   000    Old_age   Always       -       458759
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   073   057   040    Old_age   Always       -       27 (Min/Max 27/30)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       45
193 Load_Cycle_Count        0x0032   084   084   000    Old_age   Always       -       32847
194 Temperature_Celsius     0x0022   027   043   000    Old_age   Always       -       27 (0 20 0 0 0)
195 Hardware_ECC_Recovered  0x001a   100   064   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       9409 (75 193 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       29826654129
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       522616073689

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     16721         -
# 2  Short offline       Completed without error       00%     16677         -
# 3  Short offline       Completed without error       00%     16555         -
# 4  Extended offline    Completed without error       00%     16533         -
# 5  Short offline       Completed without error       00%     16388         -
# 6  Short offline       Completed without error       00%     16299         -
# 7  Short offline       Completed without error       00%     16218         -
# 8  Conveyance offline  Completed without error       00%     16188         -
# 9  Short offline       Completed without error       00%     16188         -
#10  Extended offline    Completed without error       00%     16183         -
#11  Short offline       Completed without error       00%     16079         -
#12  Extended offline    Aborted by host               90%     16078         -
#13  Extended offline    Completed without error       00%     16026         -
#14  Short offline       Completed without error       00%     15953         -
#15  Short offline       Completed without error       00%     15785         -
#16  Short offline       Completed without error       00%     15617         -
#17  Short offline       Completed without error       00%     15449         -
#18  Extended offline    Completed without error       00%     15306         -
#19  Short offline       Completed without error       00%     15280         -
#20  Short offline       Completed without error       00%     15112         -
#21  Short offline       Completed without error       00%     14944         -

SMART Selective self-test log data structure revision number 1
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

To my untrained eye, the drives seem fine. If the error returns after the RAM is removed, I’m considering creating a small python script to run every 5m and log the zpool status -v and at what time the errors came up.

Just one question, why does zpool status -v returns:

status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.

but below it mentions:

errors: List of errors unavailable: no such pool or dataset

even after scrubbing the data?

15

SDB has a seek failure, which I’m not experienced enough to say with certainry that is an equipment failure or not. Otherwise, drives seem healthy enough.

16

As mentioned above, I’ve tried geri91 advice and left the NAS running with just one stick of RAM.

The NAS ran just fine the whole day until somewhere during the night where the errors returned

  pool: Storage
 state: DEGRADED
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-8A
  scan: scrub repaired 0B in 05:28:35 with 0 errors on Sun Nov  9 17:51:23 2025
expand: expanded raidz2-0 copied 10.5T in 11:04:24, on Mon Oct 20 20:28:08 2025
config:

        NAME                                      STATE     READ WRITE CKSUM
        Storage                                   DEGRADED     0     0     0
          raidz2-0                                DEGRADED     0     0     0
            ca3b971e-5f7f-4081-94ca-06d366db6b6a  ONLINE       0     0     6
            ac38834c-ff49-48d9-a32f-c5b80f4fc040  ONLINE       0     0     4
            5a8d152f-9119-41ea-b7f4-e99bbd917ff2  ONLINE       0     0     6
            2d37cb88-640f-42c6-b361-57ff968e2a07  ONLINE       0     0     8
            1337446035152578810                   UNAVAIL      0     0     2  was /dev/disk/by-partuuid/b317f1cd-7c6b-454f-9beb-4379c36210db

errors: List of errors unavailable: no such pool or dataset

It’s always the same amount of errors, on the same drives. and it goes beyond me why it even errors out on a disk that’s not even installed in the system (just received a mail that WD shipped the replacement today, incredible support on their side). I’m considering replacing all SATA cables now and reinstalling the RAM but any advice is welcome as I’m completely out of ideas.

17

today I’ve tried: installing back a known good SATA controller card with the same ASM chip as the motherboard and deleting the pool which had the corrupted file and error afterwards. To no avail, errors are back. I’ve now tried swapping all SATA cables with brand new ones (I had a bunch of them). If this doesn’t work, I’m going to start unplugging drives one by one to check if there’s something I’m missing and the S.M.A.R.T tests are picking up. After that, I’m out of ideas :smiling_face_with_tear:

18

I hate to be the one to say this, but it might be time to upgrade the motherboard to something that can support an HBA. At this point I think we’ll run in circles trying to identify if it is the drives - but we’re already working with sata cards that are well documented to not play nice with TrueNAS.

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19

Good morning,

I’ve finally managed to fix the issue! Decided to pursue what I mentioned above and investigated a bit more about the error message. I was able to find a person in this forum with the same issue. Turns out this issue was caused by errors in the pool itself.

I’ve deleted the pool, wipped all drives and created a new Raidz2 pool. Transferred back all data and I’ve zero errors now (stable :slight_smile: )

  pool: Storage
 state: ONLINE
  scan: scrub repaired 0B in 01:08:35 with 0 errors on Thu Nov 13 01:31:30 2025
config:

        NAME                                      STATE     READ WRITE CKSUM
        Storage                                   ONLINE       0     0     0
          raidz2-0                                ONLINE       0     0     0
            b85438f7-f8ab-4d1d-bf64-cc230b68074b  ONLINE       0     0     0
            69ecbfb8-58b9-4c27-88cd-9d190c2a6f72  ONLINE       0     0     0
            c04638c9-5c05-43a2-8560-8e5b1d41fd93  ONLINE       0     0     0
            c887f1eb-49f9-479a-b981-7645c867e6e5  ONLINE       0     0     0
            cd2a1543-f558-49bb-ab77-33406c374b1f  ONLINE       0     0     0

errors: No known data errors

Thanks for all the help, I’ve learnt a few things along the way :slight_smile:

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