Hello everyone, It’s been a few months that I started getting Checksum Errors, I’ve tried scrubbing but no fix at all. A month ago I got around 500-800 Checksum Errors, that’s when I decided to research potential solutions. I’ve replaced the ‘M.2 B+M Key to SATA III 2 Ports Expansion Card’ and all SATA Cables that are connected to the motherboard. It hasn’t increased the errors yet as they been holding around the 70-85 errors. I use the NAS as a Plex server and external storage, so nothing crazy that I believe is affecting it.
I’m really new to this, I don’t have any past experience with Linux or server hosting. Just watched couple of YouTube videos and decided to give it a go. Any help or guidance would be really appreciated. Also I don’t know how forum formatting works, so if there’s anything I did wrong on this post please let me know!
My System Configuration:
- JONSBO N2 Case
- TrueNAS-SCALE-25.04.2.6
- AMD Ryzen 9 5900X 12-Core Processor
- ASUS ROG STRIX B550-I GAMING
- Corsair 2x16GB (32GB of RAM) Running Base Speeds
- Data Pool Running RAIDZ2
-
sda (8TB) (76 Checksum Errors)
-
sdb (8TB) (74 Checksum Errors)
-
sdc (8TB) (76 Checksum Errors)
-
sdd (8TB) (84 Checksum Errors)
-
sdf (8TB) (71 Checksum Errors)
-
- Log VDEV 256GB NMVE (No Errors)
- Crucial 128GB SATA SSD as Boot Drive
2 Hard Drives are being connect by the ‘M.2 B+M Key to SATA III 2 Ports Expansion Card’ and the rest to the motherboard SATA ports.
Some Troubleshooting After Replacing Expansion Card and SATA CABLES:
I’ve been looking at forums and did some commands that other people had luck with:
- I first did a Scrub using the Scrub button on the ‘Storage’ tab
- Then I did another Scrub but using Shell and
zpool scrub $pool_name - Afterwards I did
zpool status -v
I noticed that some corrupted files were gone and repaired? Maybe I’m wrong but those files haven’t reappeared yet.
Pool Status
root@truenas[~]# sudo zpool status
pool: Cubito
state: ONLINE
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 07:44:14 with 1 errors on Wed Feb 25 08:10:09 2026
config:
NAME STATE READ WRITE CKSUM
Cubito ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
91d93d30-be96-46fa-9f37-8a52a0b3b7bd ONLINE 0 0 76
8037015c-c1d7-4450-94d2-7e294907eab0 ONLINE 0 0 71
f851a6b9-7bf3-4362-82f4-915bcd2f73b9 ONLINE 0 0 74
c68798b6-1d45-4089-add9-d33ce59b20fc ONLINE 0 0 84
dec6a5f3-d1ae-41bd-b505-cba8052a3ecd ONLINE 0 0 76
logs
dc92be13-4606-4047-9cd2-d517611e0e68 ONLINE 0 0 0
errors: 1 data errors, use '-v' for a list
pool: boot-pool
state: ONLINE
status: Some supported and requested features are not enabled on the pool.
The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(7) for details.
scan: scrub repaired 0B in 00:01:34 with 0 errors on Tue Feb 24 03:46:35 2026
config:
NAME STATE READ WRITE CKSUM
boot-pool ONLINE 0 0 0
sde3 ONLINE 0 0 0
errors: No known data errors
Pool Status with -v command:
root@truenas[~]# sudo zpool status -v
pool: Cubito
state: ONLINE
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 07:44:14 with 1 errors on Wed Feb 25 08:10:09 2026
config:
NAME STATE READ WRITE CKSUM
Cubito ONLINE 0 0 0
raidz2-0 ONLINE 0 0 0
91d93d30-be96-46fa-9f37-8a52a0b3b7bd ONLINE 0 0 76
8037015c-c1d7-4450-94d2-7e294907eab0 ONLINE 0 0 71
f851a6b9-7bf3-4362-82f4-915bcd2f73b9 ONLINE 0 0 74
c68798b6-1d45-4089-add9-d33ce59b20fc ONLINE 0 0 84
dec6a5f3-d1ae-41bd-b505-cba8052a3ecd ONLINE 0 0 76
logs
dc92be13-4606-4047-9cd2-d517611e0e68 ONLINE 0 0 0
errors: Permanent errors have been detected in the following files:
/mnt/.ix-apps/truenas_catalog/trains/community/jdownloader2/1.1.3/questions.yaml
pool: boot-pool
state: ONLINE
status: Some supported and requested features are not enabled on the pool.
The pool can still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(7) for details.
scan: scrub repaired 0B in 00:01:34 with 0 errors on Tue Feb 24 03:46:35 2026
config:
NAME STATE READ WRITE CKSUM
boot-pool ONLINE 0 0 0
sde3 ONLINE 0 0 0
errors: No known data errors
SMART Values
sda
root@truenas[~]# sudo smartctl -a /dev/sda
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.12.15-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate IronWolf
Device Model: ST8000VN004-2M2101
Serial Number: WSD3WS13
LU WWN Device Id: 5 000c50 0dc931370
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 7.3/6088
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: Wed Feb 25 11:26:36 2026 PST
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
See vendor-specific Attribute list for marginal Attributes.
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: ( 715) 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 082 064 044 Pre-fail Always - 0/173690224
3 Spin_Up_Time 0x0003 082 082 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 31
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 089 060 045 Pre-fail Always - 0/712601327
9 Power_On_Hours 0x0032 076 076 000 Old_age Always - 21152
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 32
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 0 0
190 Airflow_Temperature_Cel 0x0022 061 010 040 Old_age Always In_the_past 39 (Min/Max 25/49 #1343)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 10
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 917
194 Temperature_Celsius 0x0022 039 090 000 Old_age Always - 39 (0 14 0 0 0)
195 Hardware_ECC_Recovered 0x001a 082 064 000 Old_age Always - 0/173690224
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 - 21058h+21m+43.185s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 46898250668
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 792346579365
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% 21072 -
# 2 Short offline Completed without error 00% 20904 -
# 3 Short offline Completed without error 00% 20736 -
# 4 Extended offline Completed without error 00% 20580 -
# 5 Short offline Completed without error 00% 20568 -
# 6 Short offline Completed without error 00% 20400 -
# 7 Short offline Completed without error 00% 20232 -
# 8 Short offline Completed without error 00% 20064 -
# 9 Short offline Completed without error 00% 19896 -
#10 Short offline Completed without error 00% 19728 -
#11 Short offline Completed without error 00% 19560 -
#12 Short offline Completed without error 00% 19392 -
#13 Short offline Completed without error 00% 19392 -
#14 Short offline Completed without error 00% 19224 -
#15 Extended offline Completed without error 00% 19092 -
#16 Short offline Completed without error 00% 19056 -
#17 Short offline Completed without error 00% 18888 -
#18 Short offline Completed without error 00% 18720 -
#19 Short offline Completed without error 00% 18592 -
#20 Short offline Completed without error 00% 18443 -
#21 Short offline Completed without error 00% 18275 -
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.
The above only provides legacy SMART information - try 'smartctl -x' for more
sdb
root@truenas[~]# sudo smartctl -a /dev/sdb
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.12.15-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate IronWolf
Device Model: ST8000VN004-3CP101
Serial Number: WWZ2CHFL
LU WWN Device Id: 5 000c50 0e719ad86
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 7.3/6088
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: Wed Feb 25 11:28:14 2026 PST
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: ( 712) 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 077 064 044 Pre-fail Always - 0/45081776
3 Spin_Up_Time 0x0003 090 090 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 32
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 087 060 045 Pre-fail Always - 0/539971567
9 Power_On_Hours 0x0032 076 076 000 Old_age Always - 21153
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 32
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 0 0
190 Airflow_Temperature_Cel 0x0022 056 026 000 Old_age Always - 44 (Min/Max 25/56)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 12
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 920
194 Temperature_Celsius 0x0022 044 074 000 Old_age Always - 44 (0 14 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 - 1
240 Head_Flying_Hours 0x0000 100 253 000 Old_age Offline - 21057h+25m+04.338s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 46894959927
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 792196069344
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% 21072 -
# 2 Short offline Completed without error 00% 20904 -
# 3 Short offline Completed without error 00% 20736 -
# 4 Extended offline Completed without error 00% 20580 -
# 5 Short offline Completed without error 00% 20568 -
# 6 Short offline Completed without error 00% 20400 -
# 7 Short offline Completed without error 00% 20232 -
# 8 Short offline Completed without error 00% 20064 -
# 9 Short offline Completed without error 00% 20010 -
#10 Short offline Completed without error 00% 19897 -
#11 Short offline Completed without error 00% 19729 -
#12 Short offline Completed without error 00% 19561 -
#13 Short offline Completed without error 00% 19393 -
#14 Short offline Completed without error 00% 19392 -
#15 Short offline Completed without error 00% 19224 -
#16 Extended offline Completed without error 00% 19092 -
#17 Short offline Completed without error 00% 19056 -
#18 Short offline Completed without error 00% 18888 -
#19 Short offline Completed without error 00% 18720 -
#20 Short offline Completed without error 00% 18593 -
#21 Short offline Completed without error 00% 18443 -
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.
The above only provides legacy SMART information - try 'smartctl -x' for more
sdc
root@truenas[~]# sudo smartctl -a /dev/sdc
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.12.15-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate Exos 7E10
Device Model: ST8000NM017B-2TJ103
Serial Number: WWZ0EGRR
LU WWN Device Id: 5 000c50 0e4cb5543
Firmware Version: SN01
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 7.3/6088
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: Wed Feb 25 11:29:40 2026 PST
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: ( 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: ( 695) 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 080 064 044 Pre-fail Always - 0/93401760
3 Spin_Up_Time 0x0003 092 092 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 36
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 087 060 045 Pre-fail Always - 0/538497058
9 Power_On_Hours 0x0032 076 076 000 Old_age Always - 21153
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 37
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 0 0
190 Airflow_Temperature_Cel 0x0022 053 013 000 Old_age Always - 47 (Min/Max 25/60)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 13
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 925
194 Temperature_Celsius 0x0022 047 087 000 Old_age Always - 47 (0 10 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 100 253 000 Old_age Offline - 21053h+36m+32.075s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 46888658695
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 830597697109
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% 21072 -
# 2 Short offline Completed without error 00% 20905 -
# 3 Short offline Completed without error 00% 20737 -
# 4 Extended offline Completed without error 00% 20580 -
# 5 Short offline Completed without error 00% 20569 -
# 6 Short offline Completed without error 00% 20401 -
# 7 Short offline Completed without error 00% 20233 -
# 8 Short offline Completed without error 00% 20065 -
# 9 Short offline Completed without error 00% 19897 -
#10 Short offline Completed without error 00% 19729 -
#11 Short offline Completed without error 00% 19561 -
#12 Short offline Completed without error 00% 19393 -
#13 Short offline Completed without error 00% 19392 -
#14 Short offline Completed without error 00% 19224 -
#15 Extended offline Completed without error 00% 19092 -
#16 Short offline Completed without error 00% 19056 -
#17 Short offline Completed without error 00% 18888 -
#18 Short offline Completed without error 00% 18720 -
#19 Short offline Completed without error 00% 18593 -
#20 Short offline Completed without error 00% 18443 -
#21 Short offline Completed without error 00% 18275 -
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.
The above only provides legacy SMART information - try 'smartctl -x' for more
sdd
root@truenas[~]# sudo smartctl -a /dev/sdd
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.12.15-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate IronWolf
Device Model: ST8000VN004-3CP101
Serial Number: WWZ2C6Q0
LU WWN Device Id: 5 000c50 0e719e6f4
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 7.3/6088
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: Wed Feb 25 11:30:07 2026 PST
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: ( 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: ( 701) 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 076 064 044 Pre-fail Always - 0/43836096
3 Spin_Up_Time 0x0003 089 089 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 33
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 087 060 045 Pre-fail Always - 0/534924326
9 Power_On_Hours 0x0032 076 076 000 Old_age Always - 21152
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 34
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 0 0
190 Airflow_Temperature_Cel 0x0022 054 014 000 Old_age Always - 46 (Min/Max 25/59)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 13
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 921
194 Temperature_Celsius 0x0022 046 086 000 Old_age Always - 46 (0 15 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 100 253 000 Old_age Offline - 21055h+45m+32.023s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 46890309442
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 791958860670
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% 21072 -
# 2 Short offline Completed without error 00% 20904 -
# 3 Short offline Completed without error 00% 20736 -
# 4 Extended offline Completed without error 00% 20580 -
# 5 Short offline Completed without error 00% 20568 -
# 6 Short offline Completed without error 00% 20400 -
# 7 Short offline Completed without error 00% 20232 -
# 8 Short offline Completed without error 00% 20064 -
# 9 Short offline Completed without error 00% 19896 -
#10 Short offline Completed without error 00% 19728 -
#11 Short offline Completed without error 00% 19560 -
#12 Short offline Completed without error 00% 19392 -
#13 Short offline Completed without error 00% 19392 -
#14 Short offline Completed without error 00% 19224 -
#15 Extended offline Completed without error 00% 19091 -
#16 Short offline Completed without error 00% 19056 -
#17 Short offline Completed without error 00% 18888 -
#18 Short offline Completed without error 00% 18720 -
#19 Short offline Completed without error 00% 18592 -
#20 Short offline Completed without error 00% 18443 -
#21 Short offline Completed without error 00% 18275 -
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.
The above only provides legacy SMART information - try 'smartctl -x' for more
sdf
root@truenas[~]# sudo smartctl -a /dev/sdf
smartctl 7.4 2023-08-01 r5530 [x86_64-linux-6.12.15-production+truenas] (local build)
Copyright (C) 2002-23, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Family: Seagate Exos 7E10
Device Model: ST8000NM017B-2TJ103
Serial Number: WWZ0EHYW
LU WWN Device Id: 5 000c50 0e4cb5b9c
Firmware Version: SN01
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 7.3/6088
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: Wed Feb 25 11:30:56 2026 PST
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: ( 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: ( 712) 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 080 064 044 Pre-fail Always - 0/111051144
3 Spin_Up_Time 0x0003 092 092 000 Pre-fail Always - 0
4 Start_Stop_Count 0x0032 100 100 020 Old_age Always - 34
5 Reallocated_Sector_Ct 0x0033 100 100 010 Pre-fail Always - 0
7 Seek_Error_Rate 0x000f 087 060 045 Pre-fail Always - 0/543777794
9 Power_On_Hours 0x0032 076 076 000 Old_age Always - 21153
10 Spin_Retry_Count 0x0013 100 100 097 Pre-fail Always - 0
12 Power_Cycle_Count 0x0032 100 100 020 Old_age Always - 36
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 0 0
190 Airflow_Temperature_Cel 0x0022 055 023 000 Old_age Always - 45 (Min/Max 25/58)
192 Power-Off_Retract_Count 0x0032 100 100 000 Old_age Always - 12
193 Load_Cycle_Count 0x0032 100 100 000 Old_age Always - 926
194 Temperature_Celsius 0x0022 045 077 000 Old_age Always - 45 (0 15 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 100 253 000 Old_age Offline - 21059h+46m+12.228s
241 Total_LBAs_Written 0x0000 100 253 000 Old_age Offline - 46888961847
242 Total_LBAs_Read 0x0000 100 253 000 Old_age Offline - 891062186704
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% 21072 -
# 2 Short offline Completed without error 00% 20905 -
# 3 Short offline Completed without error 00% 20737 -
# 4 Extended offline Completed without error 00% 20580 -
# 5 Short offline Completed without error 00% 20569 -
# 6 Short offline Completed without error 00% 20400 -
# 7 Short offline Completed without error 00% 20232 -
# 8 Short offline Completed without error 00% 20064 -
# 9 Short offline Completed without error 00% 19897 -
#10 Short offline Completed without error 00% 19729 -
#11 Short offline Completed without error 00% 19561 -
#12 Short offline Completed without error 00% 19393 -
#13 Short offline Completed without error 00% 19392 -
#14 Short offline Completed without error 00% 19224 -
#15 Extended offline Completed without error 00% 19092 -
#16 Short offline Completed without error 00% 19056 -
#17 Short offline Completed without error 00% 18888 -
#18 Short offline Completed without error 00% 18720 -
#19 Short offline Completed without error 00% 18593 -
#20 Short offline Completed without error 00% 18443 -
#21 Short offline Completed without error 00% 18275 -
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.
The above only provides legacy SMART information - try 'smartctl -x' for more
…
My whole NAS and Truenas config is being held by hopes and dreams but thank you in advance for any help. I would honestly maybe pay someone to help me fix Truenas config since I feel like its messy. This is my first time using Linux and doing any self hosting homelab.
Also thank you to user ‘terrehbyte’ I used his forum post as a guideline to make this post.
