Help! Woke up to the slowest and checksum errored TrueNas Scale I ever had

[Franky]

Hi folks

Yesterday I installed an SSD on my server and booted up the system, which was running fine. Since it was late at night, I simply added the SSD as hardware, planning to configure it in the interface the next day.

Today I’m experiencing very slow speeds along with 9 checksum errors on one of the disks. When transferring files via SMB, I notice unusual spike behavior, and during each spike, there’s a strange clattering sound coming from one of the disks. The SMART tests report everything as fine. The only change I made in the interface was physically removing the SSD from the system. I don’t think it is a network problem, the server acts also as a network switch and the connection is as fast and as reliable as always.

1 x RAIDZ1 | 3 wide | 16.37 TiB
ElectricEel-24.10.2

Please help me! Thank you <3

[yorick]

@Franky

Today I’m experiencing very slow speeds along with 9 checksum errors on one of the disks. When transferring files via SMB, I notice unusual spike behavior, and during each spike, there’s a strange clattering sound coming from one of the disks.

Yeah that sounds like a failing disk. Even if SMART doesn’t detect it.

I don’t think it’s related to your SSD at all.

“Strange clattering sounds” are never good - I’ve seen this with disks resetting the heads while trying to read, because it’s getting errors and trying to fix this by going back to start, then repeating the read.

Identify the serial number of the failing disk, and replace it. Caution while doing so - you are on raidz1, and if you offline the wrong disk, you’re at risk of losing data.

[Protopia]

Run the following commands and post the output here (each in a separate </> box) to try to determine the failing drive:

• lsblk -bo NAME,MODEL,ROTA,PTTYPE,TYPE,START,SIZE,PARTTYPENAME,PARTUUID
• sudo zpool status -v
• sudo zpool import

[Franky]

Thank you for your feedback! Here are the commands I ran:

admin@truenas[~]$ lsblk -bo NAME,MODEL,ROTA,PTTYPE,TYPE,START,SIZE,PARTTYPENAME,PARTUUID
NAME        MODEL ROTA PTTYPE TYPE    START           SIZE PARTTYPENAME             PARTUUID
sda         ST180    1 gpt    disk          18000207937536
├─sda1               1 gpt    part      128     2147483648 FreeBSD swap             aa06b85c-bfb5-11ee-99e6-00e2697a8e8e
└─sda2               1 gpt    part  4194432 17998060367872 FreeBSD ZFS              aa2e9ea8-bfb5-11ee-99e6-00e2697a8e8e
sdb         ST180    1 gpt    disk          18000207937536
├─sdb1               1 gpt    part      128     2147483648 FreeBSD swap             aa136b4a-bfb5-11ee-99e6-00e2697a8e8e
└─sdb2               1 gpt    part  4194432 17998060367872 FreeBSD ZFS              aa45ff22-bfb5-11ee-99e6-00e2697a8e8e
sdc         ST180    1 gpt    disk          18000207937536
├─sdc1               1 gpt    part      128     2147483648 FreeBSD swap             aa1d5693-bfb5-11ee-99e6-00e2697a8e8e
└─sdc2               1 gpt    part  4194432 17998060367872 FreeBSD ZFS              aa3c170a-bfb5-11ee-99e6-00e2697a8e8e
nvme0n1     Patri    0 gpt    disk            128035676160
├─nvme0n1p1          0 gpt    part     4096        1048576 BIOS boot                041f8e17-849a-467c-822a-fb3f70440e55
├─nvme0n1p2          0 gpt    part     6144      536870912 EFI System               3de5cd2b-ea5b-4b0e-964b-49f6e5740395
├─nvme0n1p3          0 gpt    part 34609152   110315773440 Solaris /usr & Apple ZFS 6e9a1c28-48b3-4ca8-bd8d-64dbd4411a28
└─nvme0n1p4          0 gpt    part  1054720    17179869184 Linux swap               d64e2e57-4518-44e3-9949-40fe94b89e25

admin@truenas[~]$ sudo zpool status -v
  pool: boot-pool
 state: ONLINE
  scan: scrub repaired 0B in 00:00:32 with 0 errors on Mon Mar 10 03:45:34 2025
config:

        NAME         STATE     READ WRITE CKSUM
        boot-pool    ONLINE       0     0     0
          nvme0n1p3  ONLINE       0     0     0

errors: No known data errors

  pool: pool0
 state: DEGRADED
status: One or more devices has experienced an unrecoverable error.  An
        attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
        using 'zpool clear' or replace the device with 'zpool replace'.
   see: https://openzfs.github.io/openzfs-docs/msg/ZFS-8000-9P
  scan: scrub repaired 0B in 18:58:13 with 0 errors on Tue Feb 25 15:02:24 2025
config:

        NAME                                      STATE     READ WRITE CKSUM
        pool0                                     DEGRADED     0     0     0
          raidz1-0                                DEGRADED     0     0     0
            aa2e9ea8-bfb5-11ee-99e6-00e2697a8e8e  DEGRADED     0     0     1  too many errors
            sdb2                                  ONLINE       0     0     0
            aa3c170a-bfb5-11ee-99e6-00e2697a8e8e  ONLINE       0     0     0

errors: No known data errors

admin@truenas[~]$ sudo zpool import
no pools available to import

[Protopia]

Ok. Some sort of disk errors - possibly a failing drive.

Please run sudo smartctl -x /dev/sda (assuming you haven’t rebooted since the last commands were run) and post the results so we can see whether the drive itself is reporting any issues (or whether this is something other than the drive itself).

[Franky]

Here is the response:

admin@truenas[~]$ sudo smartctl -x /dev/sda
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.6.44-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Exos X18
Device Model:     ST18000NM000J-2TV103
Serial Number:    WR50162R
LU WWN Device Id: 5 000c50 0e060ace4
Firmware Version: SN02
User Capacity:    18,000,207,937,536 bytes [18.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5660
ATA Version is:   ACS-4 (minor revision not indicated)
SATA Version is:  SATA 3.3, 6.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Wed Mar 12 23:21:46 2025 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Unavailable
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Disabled
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Write SCT (Get) Feature Control Command failed: Connection timed out
Wt Cache Reorder: Unknown (SCT Feature Control command failed)

=== 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:                (  559) 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:        (1551) 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--   081   064   044    -    0/115530641
  3 Spin_Up_Time            PO----   096   090   000    -    0
  4 Start_Stop_Count        -O--CK   098   098   020    -    2468
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   088   060   045    -    0/661855901
  9 Power_On_Hours          -O--CK   089   089   000    -    9660
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    677
 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 0 0
190 Airflow_Temperature_Cel -O---K   057   039   000    -    43 (Min/Max 43/44)
192 Power-Off_Retract_Count -O--CK   100   100   000    -    665
193 Load_Cycle_Count        -O--CK   093   093   000    -    15939
194 Temperature_Celsius     -O---K   043   061   000    -    43 (0 22 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
200 Pressure_Limit          PO---K   100   100   001    -    0
240 Head_Flying_Hours       ------   100   253   000    -    8049h+01m+20.356s
241 Total_LBAs_Written      ------   100   253   000    -    40846308812
242 Total_LBAs_Read         ------   100   253   000    -    1552036277588
                            ||||||_ 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%      9638         -
# 2  Short offline       Completed without error       00%      9623         -
# 3  Short offline       Interrupted (host reset)      00%      9615         -
# 4  Extended offline    Completed without error       00%      9591         -
# 5  Short offline       Completed without error       00%      9543         -
# 6  Short offline       Completed without error       00%      9519         -
# 7  Short offline       Completed without error       00%      9495         -
# 8  Short offline       Completed without error       00%      9471         -
# 9  Short offline       Completed without error       00%      9447         -
#10  Extended offline    Completed without error       00%      9425         -
#11  Short offline       Completed without error       00%      9375         -
#12  Short offline       Completed without error       00%      9351         -
#13  Short offline       Completed without error       00%      9327         -
#14  Short offline       Completed without error       00%      9303         -
#15  Extended offline    Completed without error       00%      9298         -
#16  Short offline       Completed without error       00%      9253         -
#17  Short offline       Completed without error       00%      9253         -
#18  Extended offline    Interrupted (host reset)      00%      9244         -
#19  Short offline       Completed without error       00%      9225         -

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:                    43 Celsius
Power Cycle Min/Max Temperature:     43/44 Celsius
Lifetime    Min/Max Temperature:     21/61 Celsius
Under/Over Temperature Limit Count:   0/3
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 02 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:     10/40 Celsius
Min/Max Temperature Limit:            5/60 Celsius
Temperature History Size (Index):    128 (120)

Index    Estimated Time   Temperature Celsius
 121    2025-03-07 18:28    35  ****************
 122    2025-03-07 19:27     ?  -
 123    2025-03-07 20:26    35  ****************
 124    2025-03-07 21:25     ?  -
 125    2025-03-07 22:24    35  ****************
 126    2025-03-07 23:23     ?  -
 127    2025-03-08 00:22    35  ****************
   0    2025-03-08 01:21     ?  -
   1    2025-03-08 02:20    35  ****************
   2    2025-03-08 03:19     ?  -
   3    2025-03-08 04:18    36  *****************
   4    2025-03-08 05:17     ?  -
   5    2025-03-08 06:16    36  *****************
   6    2025-03-08 07:15     ?  -
   7    2025-03-08 08:14    36  *****************
   8    2025-03-08 09:13     ?  -
   9    2025-03-08 10:12    36  *****************
  10    2025-03-08 11:11     ?  -
  11    2025-03-08 12:10    36  *****************
  12    2025-03-08 13:09     ?  -
  13    2025-03-08 14:08    36  *****************
  14    2025-03-08 15:07     ?  -
  15    2025-03-08 16:06    36  *****************
  16    2025-03-08 17:05     ?  -
  17    2025-03-08 18:04    36  *****************
  18    2025-03-08 19:03     ?  -
  19    2025-03-08 20:02    36  *****************
  20    2025-03-08 21:01     ?  -
  21    2025-03-08 22:00    36  *****************
  22    2025-03-08 22:59     ?  -
  23    2025-03-08 23:58    36  *****************
  24    2025-03-09 00:57     ?  -
  25    2025-03-09 01:56    36  *****************
  26    2025-03-09 02:55     ?  -
  27    2025-03-09 03:54    36  *****************
  28    2025-03-09 04:53     ?  -
  29    2025-03-09 05:52    36  *****************
  30    2025-03-09 06:51     ?  -
  31    2025-03-09 07:50    36  *****************
  32    2025-03-09 08:49     ?  -
  33    2025-03-09 09:48    36  *****************
  34    2025-03-09 10:47     ?  -
  35    2025-03-09 11:46    36  *****************
  36    2025-03-09 12:45     ?  -
  37    2025-03-09 13:44    36  *****************
  38    2025-03-09 14:43     ?  -
  39    2025-03-09 15:42    36  *****************
  40    2025-03-09 16:41     ?  -
  41    2025-03-09 17:40    36  *****************
  42    2025-03-09 18:39     ?  -
  43    2025-03-09 19:38    36  *****************
  44    2025-03-09 20:37     ?  -
  45    2025-03-09 21:36    36  *****************
  46    2025-03-09 22:35     ?  -
  47    2025-03-09 23:34    36  *****************
  48    2025-03-10 00:33     ?  -
  49    2025-03-10 01:32    36  *****************
  50    2025-03-10 02:31     ?  -
  51    2025-03-10 03:30    36  *****************
  52    2025-03-10 04:29     ?  -
  53    2025-03-10 05:28    36  *****************
  54    2025-03-10 06:27     ?  -
  55    2025-03-10 07:26    36  *****************
  56    2025-03-10 08:25     ?  -
  57    2025-03-10 09:24    36  *****************
  58    2025-03-10 10:23     ?  -
  59    2025-03-10 11:22    36  *****************
  60    2025-03-10 12:21     ?  -
  61    2025-03-10 13:20    36  *****************
  62    2025-03-10 14:19     ?  -
  63    2025-03-10 15:18    36  *****************
  64    2025-03-10 16:17     ?  -
  65    2025-03-10 17:16    36  *****************
  66    2025-03-10 18:15     ?  -
  67    2025-03-10 19:14    36  *****************
  68    2025-03-10 20:13     ?  -
  69    2025-03-10 21:12    36  *****************
  70    2025-03-10 22:11     ?  -
  71    2025-03-10 23:10    36  *****************
  72    2025-03-11 00:09    37  ******************
  73    2025-03-11 01:08    37  ******************
  74    2025-03-11 02:07    35  ****************
 ...    ..(  7 skipped).    ..  ****************
  82    2025-03-11 09:59    35  ****************
  83    2025-03-11 10:58    41  **********************
  84    2025-03-11 11:57    43  ************************
 ...    ..(  8 skipped).    ..  ************************
  93    2025-03-11 20:48    43  ************************
  94    2025-03-11 21:47    42  ***********************
  95    2025-03-11 22:46    41  **********************
  96    2025-03-11 23:45     ?  -
  97    2025-03-12 00:44    40  *********************
  98    2025-03-12 01:43    42  ***********************
  99    2025-03-12 02:42    43  ************************
 ...    ..(  2 skipped).    ..  ************************
 102    2025-03-12 05:39    43  ************************
 103    2025-03-12 06:38     ?  -
 104    2025-03-12 07:37    43  ************************
 105    2025-03-12 08:36    43  ************************
 106    2025-03-12 09:35     ?  -
 107    2025-03-12 10:34    43  ************************
 108    2025-03-12 11:33     ?  -
 109    2025-03-12 12:32    43  ************************
 110    2025-03-12 13:31     ?  -
 111    2025-03-12 14:30    43  ************************
 112    2025-03-12 15:29     ?  -
 113    2025-03-12 16:28    43  ************************
 114    2025-03-12 17:27     ?  -
 115    2025-03-12 18:26    43  ************************
 116    2025-03-12 19:25    43  ************************
 117    2025-03-12 20:24     ?  -
 118    2025-03-12 21:23    44  *************************
 119    2025-03-12 22:22    43  ************************
 120    2025-03-12 23:21    43  ************************

SCT Error Recovery Control:
           Read:    100 (10.0 seconds)
          Write:    100 (10.0 seconds)

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4             677  ---  Lifetime Power-On Resets
0x01  0x010  4            9660  ---  Power-on Hours
0x01  0x018  6     40831938028  ---  Logical Sectors Written
0x01  0x020  6       359815616  ---  Number of Write Commands
0x01  0x028  6   1551834316557  ---  Logical Sectors Read
0x01  0x030  6       502663745  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4            9625  ---  Spindle Motor Power-on Hours
0x03  0x010  4            8506  ---  Head Flying Hours
0x03  0x018  4           15939  ---  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             665  ---  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              43  ---  Current Temperature
0x05  0x010  1              39  ---  Average Short Term Temperature
0x05  0x018  1              43  ---  Average Long Term Temperature
0x05  0x020  1              61  ---  Highest Temperature
0x05  0x028  1              29  ---  Lowest Temperature
0x05  0x030  1              59  ---  Highest Average Short Term Temperature
0x05  0x038  1              30  ---  Lowest Average Short Term Temperature
0x05  0x040  1              51  ---  Highest Average Long Term Temperature
0x05  0x048  1              35  ---  Lowest Average Long Term Temperature
0x05  0x050  4              56  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  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              88  ---  Number of Hardware Resets
0x06  0x010  4              16  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0xff  =====  =               =  ===  == Vendor Specific Statistics (rev 1) ==
0xff  0x008  7               0  ---  Vendor Specific
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            1  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]

Thank you for your very kind help!

[Protopia]

You said you had 9 checksum errors, but the zpool status shows only 1 - any idea why?

So we have three separate symptoms:

1. Slow performance - could be several causes, but assuming disk related could be a controller issue, a cabling issue or a drive issue.

2. Drive clicking - but that could be seeks unless you know it sounds abnormal cf. how it usually sounds. But it could indicate a failing drive.

3. Checksum 9 or 1 errors - which is a pretty low number, and could be a failing drive or a cabling issue or just a one-off glitch.

The SMART output doesn’t show any issues with the drive showing the errors.

So at this point I cannot point to anything definitive.

Perhaps you can disconnect and reseat your memory sticks, your SATA cables and any PCIe cards and see if that helps. And I think you can probablythen do a zpool clear and a scrub and see what happens.

[Franky]

I believe the server restarted multiple times—once due to a power outage and the rest while I was troubleshooting.

The checksum errors fluctuated: they started at 9, dropped to 3, then spiked to 20 before returning to 1. I have no idea why (except once, when I tried zpool clear, as advised in other threads). I also tried unplugging and reconnecting both the SATA and power cables.

Interestingly, the slow performance and drive clicking disappeared a few hours ago, right after the error count returned to 1.

[Protopia]

Please run sudo smartctl -x /dev/sdX on all other HDDs and post results so we can confirm that they are not the cause of the clicking noises.

It might also be worth running simultaneous SMART long tests on each drive and confirm they run clean.

[Franky]

Here is the response for the other two disks

admin@truenas[~]$ sudo smartctl -x /dev/sdb
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.6.44-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Exos X18
Device Model:     ST18000NM000J-2TV103
Serial Number:    WR5017WR
LU WWN Device Id: 5 000c50 0e05d5bf7
Firmware Version: SN02
User Capacity:    18,000,207,937,536 bytes [18.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5660
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:    Thu Mar 13 19:27:14 2025 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Unavailable
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Disabled
ATA Security is:  Disabled, frozen [SEC2]
Write SCT (Get) Feature Control Command failed: Connection timed out
Wt Cache Reorder: Unknown (SCT Feature Control command failed)

=== 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:        (1565) 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   044    -    0/99959441
  3 Spin_Up_Time            PO----   093   090   000    -    0
  4 Start_Stop_Count        -O--CK   099   099   020    -    1829
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   088   060   045    -    0/662073304
  9 Power_On_Hours          -O--CK   089   089   000    -    9681
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    36
 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 0 0
190 Airflow_Temperature_Cel -O---K   055   037   000    -    45 (Min/Max 41/46)
192 Power-Off_Retract_Count -O--CK   100   100   000    -    25
193 Load_Cycle_Count        -O--CK   093   093   000    -    15278
194 Temperature_Celsius     -O---K   045   063   000    -    45 (0 21 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
200 Pressure_Limit          PO---K   100   100   001    -    0
240 Head_Flying_Hours       ------   100   253   000    -    8075h+10m+43.878s
241 Total_LBAs_Written      ------   100   253   000    -    40859317212
242 Total_LBAs_Read         ------   100   253   000    -    1246228807506
                            ||||||_ 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%      9663         -
# 2  Short offline       Completed without error       00%      9638         -
# 3  Short offline       Completed without error       00%      9615         -
# 4  Extended offline    Completed without error       00%      9591         -
# 5  Short offline       Completed without error       00%      9543         -
# 6  Short offline       Completed without error       00%      9519         -
# 7  Short offline       Completed without error       00%      9495         -
# 8  Short offline       Completed without error       00%      9471         -
# 9  Short offline       Completed without error       00%      9447         -
#10  Extended offline    Completed without error       00%      9425         -
#11  Short offline       Completed without error       00%      9375         -
#12  Short offline       Completed without error       00%      9351         -
#13  Short offline       Completed without error       00%      9327         -
#14  Short offline       Completed without error       00%      9303         -
#15  Extended offline    Completed without error       00%      9298         -
#16  Extended offline    Interrupted (host reset)      00%      9244         -
#17  Short offline       Completed without error       00%      9225         -
#18  Short offline       Completed without error       00%      9201         -
#19  Short offline       Completed without error       00%      9177         -

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:                    45 Celsius
Power Cycle Min/Max Temperature:     41/46 Celsius
Lifetime    Min/Max Temperature:     21/63 Celsius
Under/Over Temperature Limit Count:   0/32
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 02 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:     10/40 Celsius
Min/Max Temperature Limit:            5/60 Celsius
Temperature History Size (Index):    128 (19)

Index    Estimated Time   Temperature Celsius
  20    2025-03-08 14:08    46  ***************************
  21    2025-03-08 15:07    46  ***************************
  22    2025-03-08 16:06    47  ****************************
 ...    ..(  2 skipped).    ..  ****************************
  25    2025-03-08 19:03    47  ****************************
  26    2025-03-08 20:02    49  ******************************
  27    2025-03-08 21:01    56  *************************************
 ...    ..(  3 skipped).    ..  *************************************
  31    2025-03-09 00:57    56  *************************************
  32    2025-03-09 01:56    55  ************************************
  33    2025-03-09 02:55    55  ************************************
  34    2025-03-09 03:54    55  ************************************
  35    2025-03-09 04:53    53  **********************************
  36    2025-03-09 05:52    52  *********************************
  37    2025-03-09 06:51    53  **********************************
  38    2025-03-09 07:50    54  ***********************************
  39    2025-03-09 08:49    55  ************************************
  40    2025-03-09 09:48    55  ************************************
  41    2025-03-09 10:47    54  ***********************************
 ...    ..(  8 skipped).    ..  ***********************************
  50    2025-03-09 19:38    54  ***********************************
  51    2025-03-09 20:37    49  ******************************
  52    2025-03-09 21:36    46  ***************************
 ...    ..(  4 skipped).    ..  ***************************
  57    2025-03-10 02:31    46  ***************************
  58    2025-03-10 03:30    45  **************************
  59    2025-03-10 04:29    46  ***************************
  60    2025-03-10 05:28    45  **************************
 ...    ..(  2 skipped).    ..  **************************
  63    2025-03-10 08:25    45  **************************
  64    2025-03-10 09:24    44  *************************
  65    2025-03-10 10:23    43  ************************
  66    2025-03-10 11:22    44  *************************
 ...    ..(  2 skipped).    ..  *************************
  69    2025-03-10 14:19    44  *************************
  70    2025-03-10 15:18    45  **************************
  71    2025-03-10 16:17    44  *************************
  72    2025-03-10 17:16    44  *************************
  73    2025-03-10 18:15    45  **************************
  74    2025-03-10 19:14    46  ***************************
  75    2025-03-10 20:13     ?  -
  76    2025-03-10 21:12    38  *******************
  77    2025-03-10 22:11    41  **********************
  78    2025-03-10 23:10    44  *************************
 ...    ..(  5 skipped).    ..  *************************
  84    2025-03-11 05:04    44  *************************
  85    2025-03-11 06:03    45  **************************
  86    2025-03-11 07:02     ?  -
  87    2025-03-11 08:01    40  *********************
  88    2025-03-11 09:00    35  ****************
  89    2025-03-11 09:59    37  ******************
  90    2025-03-11 10:58    38  *******************
  91    2025-03-11 11:57    38  *******************
  92    2025-03-11 12:56    37  ******************
  93    2025-03-11 13:55    36  *****************
 ...    ..(  6 skipped).    ..  *****************
 100    2025-03-11 20:48    36  *****************
 101    2025-03-11 21:47    38  *******************
 102    2025-03-11 22:46    44  *************************
 103    2025-03-11 23:45    46  ***************************
 104    2025-03-12 00:44    45  **************************
 ...    ..(  7 skipped).    ..  **************************
 112    2025-03-12 08:36    45  **************************
 113    2025-03-12 09:35    43  ************************
 114    2025-03-12 10:34    44  *************************
 115    2025-03-12 11:33     ?  -
 116    2025-03-12 12:32    41  **********************
 117    2025-03-12 13:31    44  *************************
 118    2025-03-12 14:30    45  **************************
 ...    ..(  5 skipped).    ..  **************************
 124    2025-03-12 20:24    45  **************************
 125    2025-03-12 21:23    46  ***************************
 126    2025-03-12 22:22    45  **************************
 127    2025-03-12 23:21    45  **************************
   0    2025-03-13 00:20    44  *************************
   1    2025-03-13 01:19    45  **************************
   2    2025-03-13 02:18    45  **************************
   3    2025-03-13 03:17    45  **************************
   4    2025-03-13 04:16    44  *************************
 ...    ..(  4 skipped).    ..  *************************
   9    2025-03-13 09:11    44  *************************
  10    2025-03-13 10:10    45  **************************
  11    2025-03-13 11:09    44  *************************
  12    2025-03-13 12:08    44  *************************
  13    2025-03-13 13:07    45  **************************
 ...    ..(  5 skipped).    ..  **************************
  19    2025-03-13 19:01    45  **************************

SCT Error Recovery Control:
           Read:    100 (10.0 seconds)
          Write:    100 (10.0 seconds)

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4              36  ---  Lifetime Power-On Resets
0x01  0x010  4            9681  ---  Power-on Hours
0x01  0x018  6     40857890444  ---  Logical Sectors Written
0x01  0x020  6       358901942  ---  Number of Write Commands
0x01  0x028  6   1246083555559  ---  Logical Sectors Read
0x01  0x030  6       397703659  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4            9655  ---  Spindle Motor Power-on Hours
0x03  0x010  4            8538  ---  Head Flying Hours
0x03  0x018  4           15278  ---  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              25  ---  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              45  ---  Current Temperature
0x05  0x010  1              44  ---  Average Short Term Temperature
0x05  0x018  1              45  ---  Average Long Term Temperature
0x05  0x020  1              63  ---  Highest Temperature
0x05  0x028  1              30  ---  Lowest Temperature
0x05  0x030  1              61  ---  Highest Average Short Term Temperature
0x05  0x038  1              31  ---  Lowest Average Short Term Temperature
0x05  0x040  1              53  ---  Highest Average Long Term Temperature
0x05  0x048  1              36  ---  Lowest Average Long Term Temperature
0x05  0x050  4            6390  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  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             120  ---  Number of Hardware Resets
0x06  0x010  4              45  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0xff  =====  =               =  ===  == Vendor Specific Statistics (rev 1) ==
0xff  0x008  7               0  ---  Vendor Specific
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]

admin@truenas[~]$ sudo smartctl -x /dev/sdc
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.6.44-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Exos X18
Device Model:     ST18000NM000J-2TV103
Serial Number:    ZR561RTK
LU WWN Device Id: 5 000c50 0e33fbe5d
Firmware Version: SN02
User Capacity:    18,000,207,937,536 bytes [18.0 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5660
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:    Thu Mar 13 19:27:18 2025 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Unavailable
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Disabled
ATA Security is:  Disabled, frozen [SEC2]
Write SCT (Get) Feature Control Command failed: Connection timed out
Wt Cache Reorder: Unknown (SCT Feature Control command failed)

=== 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:                (  559) 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:        (1543) 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--   083   064   044    -    0/187960881
  3 Spin_Up_Time            PO----   091   089   000    -    0
  4 Start_Stop_Count        -O--CK   098   098   020    -    2171
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    0
  7 Seek_Error_Rate         POSR--   088   060   045    -    0/697501819
  9 Power_On_Hours          -O--CK   089   089   000    -    10449
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    119
 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 0 0
190 Airflow_Temperature_Cel -O---K   057   040   000    -    43 (Min/Max 39/43)
192 Power-Off_Retract_Count -O--CK   100   100   000    -    23
193 Load_Cycle_Count        -O--CK   092   092   000    -    16268
194 Temperature_Celsius     -O---K   043   060   000    -    43 (0 19 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
200 Pressure_Limit          PO---K   100   100   001    -    0
240 Head_Flying_Hours       ------   100   253   000    -    8269h+42m+12.270s
241 Total_LBAs_Written      ------   100   253   000    -    74440500951
242 Total_LBAs_Read         ------   100   253   000    -    1971045349132
                            ||||||_ 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%     10431         -
# 2  Short offline       Completed without error       00%     10407         -
# 3  Short offline       Completed without error       00%     10383         -
# 4  Extended offline    Completed without error       00%     10359         -
# 5  Short offline       Completed without error       00%     10311         -
# 6  Short offline       Completed without error       00%     10287         -
# 7  Short offline       Completed without error       00%     10263         -
# 8  Short offline       Completed without error       00%     10239         -
# 9  Short offline       Completed without error       00%     10215         -
#10  Extended offline    Completed without error       00%     10193         -
#11  Short offline       Completed without error       00%     10143         -
#12  Short offline       Completed without error       00%     10119         -
#13  Short offline       Completed without error       00%     10095         -
#14  Short offline       Completed without error       00%     10071         -
#15  Extended offline    Completed without error       00%     10066         -
#16  Extended offline    Interrupted (host reset)      00%     10022         -
#17  Short offline       Completed without error       00%      9993         -
#18  Short offline       Completed without error       00%      9969         -
#19  Short offline       Completed without error       00%      9945         -

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:                    43 Celsius
Power Cycle Min/Max Temperature:     39/43 Celsius
Lifetime    Min/Max Temperature:     19/59 Celsius
Under/Over Temperature Limit Count:   0/31
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 02 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:     10/40 Celsius
Min/Max Temperature Limit:            5/60 Celsius
Temperature History Size (Index):    128 (15)

Index    Estimated Time   Temperature Celsius
  16    2025-03-08 14:08    43  ************************
  17    2025-03-08 15:07    44  *************************
  18    2025-03-08 16:06    45  **************************
 ...    ..(  2 skipped).    ..  **************************
  21    2025-03-08 19:03    45  **************************
  22    2025-03-08 20:02    47  ****************************
  23    2025-03-08 21:01    52  *********************************
  24    2025-03-08 22:00    53  **********************************
  25    2025-03-08 22:59    52  *********************************
 ...    ..(  3 skipped).    ..  *********************************
  29    2025-03-09 02:55    52  *********************************
  30    2025-03-09 03:54    51  ********************************
  31    2025-03-09 04:53    49  ******************************
  32    2025-03-09 05:52    48  *****************************
  33    2025-03-09 06:51    50  *******************************
  34    2025-03-09 07:50    51  ********************************
  35    2025-03-09 08:49    51  ********************************
  36    2025-03-09 09:48    51  ********************************
  37    2025-03-09 10:47    50  *******************************
 ...    ..(  8 skipped).    ..  *******************************
  46    2025-03-09 19:38    50  *******************************
  47    2025-03-09 20:37    46  ***************************
  48    2025-03-09 21:36    44  *************************
  49    2025-03-09 22:35    43  ************************
 ...    ..(  9 skipped).    ..  ************************
  59    2025-03-10 08:25    43  ************************
  60    2025-03-10 09:24    41  **********************
  61    2025-03-10 10:23    41  **********************
  62    2025-03-10 11:22    41  **********************
  63    2025-03-10 12:21    42  ***********************
 ...    ..(  4 skipped).    ..  ***********************
  68    2025-03-10 17:16    42  ***********************
  69    2025-03-10 18:15    43  ************************
  70    2025-03-10 19:14    43  ************************
  71    2025-03-10 20:13     ?  -
  72    2025-03-10 21:12    36  *****************
  73    2025-03-10 22:11    39  ********************
  74    2025-03-10 23:10    42  ***********************
 ...    ..(  6 skipped).    ..  ***********************
  81    2025-03-11 06:03    42  ***********************
  82    2025-03-11 07:02     ?  -
  83    2025-03-11 08:01    38  *******************
  84    2025-03-11 09:00    31  ************
  85    2025-03-11 09:59    33  **************
  86    2025-03-11 10:58    34  ***************
  87    2025-03-11 11:57    34  ***************
  88    2025-03-11 12:56    34  ***************
  89    2025-03-11 13:55    33  **************
 ...    ..(  6 skipped).    ..  **************
  96    2025-03-11 20:48    33  **************
  97    2025-03-11 21:47    36  *****************
  98    2025-03-11 22:46    42  ***********************
  99    2025-03-11 23:45    43  ************************
 ...    ..(  5 skipped).    ..  ************************
 105    2025-03-12 05:39    43  ************************
 106    2025-03-12 06:38    42  ***********************
 107    2025-03-12 07:37    42  ***********************
 108    2025-03-12 08:36    42  ***********************
 109    2025-03-12 09:35    40  *********************
 110    2025-03-12 10:34    42  ***********************
 111    2025-03-12 11:33     ?  -
 112    2025-03-12 12:32    39  ********************
 113    2025-03-12 13:31    42  ***********************
 114    2025-03-12 14:30    42  ***********************
 115    2025-03-12 15:29    43  ************************
 ...    ..(  7 skipped).    ..  ************************
 123    2025-03-12 23:21    43  ************************
 124    2025-03-13 00:20    42  ***********************
 ...    ..( 17 skipped).    ..  ***********************
  14    2025-03-13 18:02    42  ***********************
  15    2025-03-13 19:01    43  ************************

SCT Error Recovery Control:
           Read:    100 (10.0 seconds)
          Write:    100 (10.0 seconds)

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4             119  ---  Lifetime Power-On Resets
0x01  0x010  4           10449  ---  Power-on Hours
0x01  0x018  6     74439172383  ---  Logical Sectors Written
0x01  0x020  6       491215711  ---  Number of Write Commands
0x01  0x028  6   1970843123797  ---  Logical Sectors Read
0x01  0x030  6       884051701  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4            9991  ---  Spindle Motor Power-on Hours
0x03  0x010  4            8762  ---  Head Flying Hours
0x03  0x018  4           16268  ---  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              23  ---  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              43  ---  Current Temperature
0x05  0x010  1              42  ---  Average Short Term Temperature
0x05  0x018  1              42  ---  Average Long Term Temperature
0x05  0x020  1              59  ---  Highest Temperature
0x05  0x028  1              20  ---  Lowest Temperature
0x05  0x030  1              58  ---  Highest Average Short Term Temperature
0x05  0x038  1              22  ---  Lowest Average Short Term Temperature
0x05  0x040  1              50  ---  Highest Average Long Term Temperature
0x05  0x048  1              28  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              60  ---  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             416  ---  Number of Hardware Resets
0x06  0x010  4             124  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
0xff  =====  =               =  ===  == Vendor Specific Statistics (rev 1) ==
0xff  0x008  7               0  ---  Vendor Specific
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]

The system just returned slow without me doing anything and then got back up to speed. I ran a simultaneous SMART long test on all drives and nothing was found by the tests.

[Protopia]

At a glance these look ok too.

[prez02]

Maybe it is the power supply? You said you had a power outage, maybe it got damaged?

Recently I added 2 hdds to my NAS and that apparently put my power supply over the edge. In theory it should have had enough power.

There were ZFS errors and I could also hear clicking noises, like a drive failing to spin up properly. I put in a new power supply and also discarded the cable adapter I used, and now it works fine.