Pool in faulted state, metadata is corrupted, I/O error

TrueNAS General
21

smartctl -a /dev/ output

root@NAS04[~]# smartctl -a /dev/sde
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:     HGST Ultrastar HC310/320
Device Model:     HGST HUS726T6TALE6L4
Serial Number:    V8H3E28R
LU WWN Device Id: 5 000cca 098cfa5b1
Firmware Version: VKGNW40H
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:27:50 2026 EST
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (   87) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 712) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   130   130   054    Pre-fail  Offline      -       100
  3 Spin_Up_Time            0x0007   100   100   024    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       12
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       386
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       12
192 Power-Off_Retract_Count 0x0032   098   098   000    Old_age   Always       -       2425
193 Load_Cycle_Count        0x0012   098   098   000    Old_age   Always       -       2425
194 Temperature_Celsius     0x0002   187   187   000    Old_age   Always       -       32 (Min/Max 15/34)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

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%        63         -
# 2  Short offline       Completed without error       00%        56         -
# 3  Short offline       Completed without error       00%     57599         -
# 4  Extended offline    Interrupted (host reset)      10%      1029         -
# 5  Extended offline    Completed without error       00%      1008         -
# 6  Extended offline    Completed without error       00%       987         -
# 7  Extended offline    Completed without error       00%       934         -
# 8  Extended offline    Completed without error       00%       883         -
# 9  Extended offline    Completed without error       00%       839         -
#10  Extended offline    Completed without error       00%       814         -
#11  Extended offline    Completed without error       00%       789         -
#12  Extended offline    Completed without error       00%       765         -
#13  Extended offline    Completed without error       00%       741         -
#14  Extended offline    Completed without error       00%       719         -
#15  Extended offline    Completed without error       00%       694         -
#16  Extended offline    Completed without error       00%       672         -
#17  Extended offline    Completed without error       00%       645         -
#18  Extended offline    Completed without error       00%       621         -
#19  Extended offline    Completed without error       00%       602         -
#20  Extended offline    Completed without error       00%       574         -
#21  Extended offline    Completed without error       00%       552         -

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

root@NAS04[~]# 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:     HGST Ultrastar HC310/320
Device Model:     HGST HUS726T6TALE6L4
Serial Number:    V8GJJ9BR
LU WWN Device Id: 5 000cca 098c78322
Firmware Version: VKGNW40H
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:27:57 2026 EST
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (   87) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 661) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   132   132   054    Pre-fail  Offline      -       96
  3 Spin_Up_Time            0x0007   100   100   024    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       10
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       387
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       10
192 Power-Off_Retract_Count 0x0032   099   099   000    Old_age   Always       -       2352
193 Load_Cycle_Count        0x0012   099   099   000    Old_age   Always       -       2352
194 Temperature_Celsius     0x0002   171   171   000    Old_age   Always       -       35 (Min/Max 22/36)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

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%        64         -
# 2  Short offline       Completed without error       00%        56         -
# 3  Short offline       Completed without error       00%     57547         -
# 4  Extended offline    Completed without error       00%      1165         -
# 5  Extended offline    Completed without error       00%      1118         -
# 6  Extended offline    Completed without error       00%      1086         -
# 7  Extended offline    Completed without error       00%      1027         -
# 8  Extended offline    Completed without error       00%       983         -
# 9  Extended offline    Completed without error       00%       956         -
#10  Extended offline    Completed without error       00%       932         -
#11  Extended offline    Completed without error       00%       911         -
#12  Extended offline    Completed without error       00%       890         -
#13  Extended offline    Completed without error       00%       868         -
#14  Extended offline    Completed without error       00%       835         -
#15  Extended offline    Completed without error       00%       813         -
#16  Extended offline    Completed without error       00%       792         -
#17  Extended offline    Completed without error       00%       763         -
#18  Extended offline    Completed without error       00%       740         -
#19  Extended offline    Completed without error       00%       718         -
#20  Extended offline    Completed without error       00%       699         -
#21  Extended offline    Completed without error       00%       671         -

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

root@NAS04[~]# smartctl -a /dev/sdg
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:     HGST Ultrastar HC310/320
Device Model:     HGST HUS726T6TALE6L4
Serial Number:    V8H29XJR
LU WWN Device Id: 5 000cca 098cf257c
Firmware Version: VKGNW40H
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:28:00 2026 EST
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (   87) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 679) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   132   132   054    Pre-fail  Offline      -       96
  3 Spin_Up_Time            0x0007   100   100   024    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       14
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       387
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       14
192 Power-Off_Retract_Count 0x0032   099   099   000    Old_age   Always       -       2365
193 Load_Cycle_Count        0x0012   099   099   000    Old_age   Always       -       2365
194 Temperature_Celsius     0x0002   206   206   000    Old_age   Always       -       29 (Min/Max 19/32)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

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%        64         -
# 2  Short offline       Completed without error       00%        57         -
# 3  Short offline       Completed without error       00%     57597         -
# 4  Extended offline    Interrupted (host reset)      10%      1029         -
# 5  Extended offline    Completed without error       00%      1014         -
# 6  Extended offline    Completed without error       00%       992         -
# 7  Extended offline    Completed without error       00%       957         -
# 8  Extended offline    Completed without error       00%       932         -
# 9  Extended offline    Completed without error       00%       891         -
#10  Extended offline    Completed without error       00%       837         -
#11  Extended offline    Completed without error       00%       814         -
#12  Extended offline    Completed without error       00%       789         -
#13  Extended offline    Completed without error       00%       765         -
#14  Extended offline    Completed without error       00%       741         -
#15  Extended offline    Completed without error       00%       717         -
#16  Extended offline    Completed without error       00%       693         -
#17  Extended offline    Completed without error       00%       669         -
#18  Extended offline    Completed without error       00%       645         -
#19  Extended offline    Completed without error       00%       620         -
#20  Extended offline    Completed without error       00%       597         -
#21  Extended offline    Completed without error       00%       574         -

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

root@NAS04[~]# smartctl -a /dev/sdh
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:     HGST Ultrastar HC310/320
Device Model:     HGST HUS726T6TALE6L4
Serial Number:    V8GK4K9R
LU WWN Device Id: 5 000cca 098c7cb6b
Firmware Version: VKGNW40H
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.2, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:28:03 2026 EST
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:      ( 245) Self-test routine in progress...
                                        50% of test remaining.
Total time to complete Offline
data collection:                (   87) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 654) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   132   132   054    Pre-fail  Offline      -       96
  3 Spin_Up_Time            0x0007   100   100   024    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       10
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   100   100   000    Old_age   Always       -       388
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       10
192 Power-Off_Retract_Count 0x0032   099   099   000    Old_age   Always       -       2307
193 Load_Cycle_Count        0x0012   099   099   000    Old_age   Always       -       2307
194 Temperature_Celsius     0x0002   193   193   000    Old_age   Always       -       31 (Min/Max 19/33)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

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%        64         -
# 2  Short offline       Completed without error       00%        57         -
# 3  Short offline       Completed without error       00%         0         -
# 4  Short offline       Completed without error       00%     58630         -
# 5  Extended offline    Completed without error       00%      2394         -
# 6  Extended offline    Completed without error       00%      2370         -
# 7  Extended offline    Completed without error       00%      2346         -
# 8  Extended offline    Completed without error       00%      2322         -
# 9  Extended offline    Completed without error       00%      2298         -
#10  Extended offline    Completed without error       00%      2277         -
#11  Extended offline    Completed without error       00%      2250         -
#12  Extended offline    Completed without error       00%      2226         -
#13  Extended offline    Completed without error       00%      2202         -
#14  Extended offline    Completed without error       00%      2181         -
#15  Extended offline    Completed without error       00%      2134         -
#16  Extended offline    Completed without error       00%      2058         -
#17  Extended offline    Completed without error       00%      2034         -
#18  Extended offline    Completed without error       00%      2010         -
#19  Extended offline    Completed without error       00%      1986         -
#20  Extended offline    Completed without error       00%      1967         -
#21  Extended offline    Completed without error       00%      1941         -

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

root@NAS04[~]# 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:     HGST Ultrastar 7K6000
Device Model:     HGST HUS726060ALE610
Serial Number:    NCG6AMUS
LU WWN Device Id: 5 000cca 24dc2e22a
Firmware Version: APGNT7J0
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:28:06 2026 EST
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (  113) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 713) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   138   138   054    Pre-fail  Offline      -       100
  3 Spin_Up_Time            0x0007   139   139   024    Pre-fail  Always       -       473 (Average 475)
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       121
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   140   140   020    Pre-fail  Offline      -       15
  9 Power_On_Hours          0x0012   089   089   000    Old_age   Always       -       82709
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       111
192 Power-Off_Retract_Count 0x0032   081   081   000    Old_age   Always       -       23668
193 Load_Cycle_Count        0x0012   081   081   000    Old_age   Always       -       23668
194 Temperature_Celsius     0x0002   162   162   000    Old_age   Always       -       37 (Min/Max 15/54)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

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  Extended offline    Completed without error       00%     16865         -
# 2  Extended offline    Aborted by host               90%     16853         -
# 3  Short offline       Completed without error       00%     16850         -
# 4  Short offline       Completed without error       00%     16842         -

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

root@NAS04[~]# 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:     HGST Ultrastar 7K6000
Device Model:     HGST HUS726060ALE610
Serial Number:    NAGGZWNY
LU WWN Device Id: 5 000cca 242c6d129
Firmware Version: APGNT7J0
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:28:25 2026 EST
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (  113) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 729) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   137   137   054    Pre-fail  Offline      -       104
  3 Spin_Up_Time            0x0007   128   128   024    Pre-fail  Always       -       513 (Average 513)
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       121
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   089   089   000    Old_age   Always       -       82674
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       111
192 Power-Off_Retract_Count 0x0032   081   081   000    Old_age   Always       -       23948
193 Load_Cycle_Count        0x0012   081   081   000    Old_age   Always       -       23948
194 Temperature_Celsius     0x0002   162   162   000    Old_age   Always       -       37 (Min/Max 14/54)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

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%     16815         -
# 2  Short offline       Completed without error       00%     16807         -
# 3  Short offline       Completed without error       00%      4508         -
# 4  Short offline       Completed without error       00%      4484         -
# 5  Extended offline    Completed without error       00%      4472         -
# 6  Short offline       Completed without error       00%      4436         -
# 7  Short offline       Completed without error       00%      4412         -
# 8  Short offline       Completed without error       00%      4388         -
# 9  Short offline       Completed without error       00%      4364         -
#10  Short offline       Completed without error       00%      1703         -
#11  Short offline       Completed without error       00%      1679         -
#12  Short offline       Completed without error       00%      1655         -
#13  Short offline       Completed without error       00%      1631         -
#14  Extended offline    Completed without error       00%      1619         -
#15  Short offline       Completed without error       00%      1583         -
#16  Short offline       Completed without error       00%      1559         -
#17  Short offline       Completed without error       00%      1535         -
#18  Short offline       Completed without error       00%      1511         -
#19  Short offline       Completed without error       00%      1487         -
#20  Short offline       Completed without error       00%      1463         -
#21  Extended offline    Completed without error       00%      1451         -

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

root@NAS04[~]# 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:     HGST Ultrastar 7K6000
Device Model:     HGST HUS726060ALE610
Serial Number:    NAG1VR5Y
LU WWN Device Id: 5 000cca 242c0d8a8
Firmware Version: APGNT7J0
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:28:28 2026 EST
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (  113) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 864) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   137   137   054    Pre-fail  Offline      -       104
  3 Spin_Up_Time            0x0007   140   140   024    Pre-fail  Always       -       471 (Average 471)
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       122
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   089   089   000    Old_age   Always       -       82668
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       112
192 Power-Off_Retract_Count 0x0032   081   081   000    Old_age   Always       -       23650
193 Load_Cycle_Count        0x0012   081   081   000    Old_age   Always       -       23650
194 Temperature_Celsius     0x0002   171   171   000    Old_age   Always       -       35 (Min/Max 14/55)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

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%     16809         -
# 2  Short offline       Completed without error       00%     16802         -

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

root@NAS04[~]# 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:     HGST Ultrastar 7K6000
Device Model:     HGST HUS726060ALE610
Serial Number:    NAGL4SAY
LU WWN Device Id: 5 000cca 242c84085
Firmware Version: APGNT7J0
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Mar  3 17:28:33 2026 EST
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:      ( 246) Self-test routine in progress...
                                        60% of test remaining.
Total time to complete Offline
data collection:                (  113) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 881) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   137   137   054    Pre-fail  Offline      -       104
  3 Spin_Up_Time            0x0007   135   135   024    Pre-fail  Always       -       499 (Average 472)
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       127
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   089   089   000    Old_age   Always       -       82033
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       117
192 Power-Off_Retract_Count 0x0032   081   081   000    Old_age   Always       -       23703
193 Load_Cycle_Count        0x0012   081   081   000    Old_age   Always       -       23703
194 Temperature_Celsius     0x0002   181   181   000    Old_age   Always       -       33 (Min/Max 11/54)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       24
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       29
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

SMART Error Log Version: 1
ATA Error Count: 16 (device log contains only the most recent five errors)
        CR = Command Register [HEX]
        FR = Features Register [HEX]
        SC = Sector Count Register [HEX]
        SN = Sector Number Register [HEX]
        CL = Cylinder Low Register [HEX]
        CH = Cylinder High Register [HEX]
        DH = Device/Head Register [HEX]
        DC = Device Command Register [HEX]
        ER = Error register [HEX]
        ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 16 occurred at disk power-on lifetime: 16170 hours (673 days + 18 hours)
  When the command that caused the error occurred, the device was doing SMART Offline or Self-test.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 00 18 3e 77 40 00   1d+05:54:18.301  READ FPDMA QUEUED
  60 e8 08 18 42 77 40 00   1d+05:54:15.506  READ FPDMA QUEUED
  60 88 08 48 3b 77 40 00   1d+05:54:15.442  READ FPDMA QUEUED
  60 00 00 48 37 77 40 00   1d+05:54:15.442  READ FPDMA QUEUED
  61 08 28 40 ef a0 40 00   1d+05:54:15.407  WRITE FPDMA QUEUED

Error 15 occurred at disk power-on lifetime: 16155 hours (673 days + 3 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 18 08 78 5e 23 40 00      15:01:08.830  READ FPDMA QUEUED
  60 08 08 e8 5b 23 40 00      15:01:05.985  READ FPDMA QUEUED
  60 d8 10 e8 39 23 40 00      15:01:05.984  READ FPDMA QUEUED
  60 20 00 a8 fb 22 40 00      15:01:05.973  READ FPDMA QUEUED
  60 48 08 80 e2 22 40 00      15:01:05.972  READ FPDMA QUEUED

Error 14 occurred at disk power-on lifetime: 16155 hours (673 days + 3 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 10 08 20 7d 17 40 00      15:00:51.438  READ FPDMA QUEUED
  60 08 08 b0 7a 17 40 00      15:00:48.515  READ FPDMA QUEUED
  60 08 08 50 78 17 40 00      15:00:48.505  READ FPDMA QUEUED
  60 08 08 40 27 17 40 00      15:00:48.490  READ FPDMA QUEUED
  60 48 10 40 21 17 40 00      15:00:48.489  READ FPDMA QUEUED

Error 13 occurred at disk power-on lifetime: 16155 hours (673 days + 3 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 08 10 c8 5a 6f 40 00      14:32:49.245  READ FPDMA QUEUED
  60 08 10 d8 58 6f 40 00      14:32:46.383  READ FPDMA QUEUED
  60 08 10 00 57 6f 40 00      14:32:46.368  READ FPDMA QUEUED
  60 10 08 c0 fb 6d 40 00      14:32:46.361  READ FPDMA QUEUED
  60 08 10 f8 fa 6b 40 00      14:32:46.359  READ FPDMA QUEUED

Error 12 occurred at disk power-on lifetime: 16154 hours (673 days + 2 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 38 00 80 05 6b 40 00      14:07:53.235  READ FPDMA QUEUED
  60 38 00 b8 03 6b 40 00      14:07:49.977  READ FPDMA QUEUED
  60 20 08 38 fa 6a 40 00      14:07:49.943  READ FPDMA QUEUED
  60 08 00 08 95 1b 40 00      14:07:49.942  READ FPDMA QUEUED
  60 08 08 b0 ee 0b 40 00      14:07:49.940  READ FPDMA QUEUED

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Aborted by host               90%     16493         -
# 2  Extended offline    Completed without error       00%     16199         -
# 3  Extended offline    Aborted by host               90%     16185         -
# 4  Short offline       Completed without error       00%     16181         -
# 5  Short offline       Completed without error       00%     16181         -
# 6  Short offline       Completed without error       00%     16174         -
# 7  Extended offline    Interrupted (host reset)      90%     16146         -
# 8  Short offline       Completed without error       00%     16140         -
# 9  Short offline       Completed without error       00%       282         -
#10  Short offline       Completed without error       00%       258         -
#11  Short offline       Completed without error       00%       234         -
#12  Short offline       Completed without error       00%       210         -
#13  Short offline       Completed without error       00%       186         -

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

root@NAS04[~]#
22

So since reboot it would appear sdb is the problem drive now.

Have you ran a long SMART on that drive?

Can you confirm that all member disks are currently visible?

Failing all that you could try zpool import -FX NAS04_VOL01 and let ZFS scan for recoverable options. Perhaps open a tmux session first as it can take a while.

23

Yes, smart test on the failing drive shows errors but I can see all the disks

root@NAS04[/]# lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
sda      8:0    0  5.5T  0 disk
├─sda1   8:1    0    2G  0 part
└─sda2   8:2    0  5.5T  0 part
sdb      8:16   0  5.5T  0 disk
├─sdb1   8:17   0    2G  0 part
└─sdb2   8:18   0  5.5T  0 part
sdc      8:32   0  5.5T  0 disk
├─sdc1   8:33   0    2G  0 part
└─sdc2   8:34   0  5.5T  0 part
sdd      8:48   0  5.5T  0 disk
├─sdd1   8:49   0    2G  0 part
└─sdd2   8:50   0  5.5T  0 part
sde      8:64   0  5.5T  0 disk
└─sde1   8:65   0  5.5T  0 part
sdf      8:80   0  5.5T  0 disk
└─sdf1   8:81   0  5.5T  0 part
sdg      8:96   0  5.5T  0 disk
└─sdg1   8:97   0  5.5T  0 part
sdh      8:112  0  5.5T  0 disk
└─sdh1   8:113  0  5.5T  0 part

all of the zfs import pool commands come back with this. I’ve tried readonly=on as well

cannot import 'NAS04_VOL01': one or more devices is currently unavailable
24

What does this give you? dmesg -T | tail -100

25 
root@NAS04[/]# dmesg -T | tail -100
[Tue Mar  3 13:26:29 2026] ACPI: AC: AC Adapter [ACAD] (on-line)
[Tue Mar  3 13:26:29 2026] sd 2:0:3:0: Attached scsi generic sg4 type 0
[Tue Mar  3 13:26:29 2026] sd 2:0:4:0: Attached scsi generic sg5 type 0
[Tue Mar  3 13:26:29 2026] sd 2:0:5:0: Attached scsi generic sg6 type 0
[Tue Mar  3 13:26:29 2026] sd 2:0:6:0: Attached scsi generic sg7 type 0
[Tue Mar  3 13:26:29 2026] sd 2:0:7:0: Attached scsi generic sg8 type 0
[Tue Mar  3 13:26:29 2026] vmw_vmci 0000:00:07.7: Using capabilities 0xc
[Tue Mar  3 13:26:29 2026] Guest personality initialized and is active
[Tue Mar  3 13:26:29 2026] VMCI host device registered (name=vmci, major=10, minor=123)
[Tue Mar  3 13:26:29 2026] Initialized host personality
[Tue Mar  3 13:26:29 2026] sd 3:0:0:0: Attached scsi generic sg9 type 0
[Tue Mar  3 13:26:29 2026] sd 3:0:1:0: Attached scsi generic sg10 type 0
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: vgaarb: deactivate vga console
[Tue Mar  3 13:26:29 2026] Console: switching to colour dummy device 80x25
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] FIFO at 0x00000000fe000000 size is 8192 KiB
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] VRAM at 0x00000000e8000000 size is 131072 KiB
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Running on SVGA version 2.
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Capabilities: rect copy, cursor, cursor bypass, cursor bypass 2, 8bit emulation, alpha cursor, extended fifo, multimon, pitchlock, irq mask, display topology, gmr, traces, gmr2, screen object 2, command buffers, command buffers 2, gbobject,
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] DMA map mode: Caching DMA mappings.
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Legacy memory limits: VRAM = 4096 KiB, FIFO = 256 KiB, surface = 0 KiB
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] MOB limits: max mob size = 131072 KiB, max mob pages = 1024
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Max GMR ids is 64
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Max number of GMR pages is 65536
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Maximum display memory size is 4096 KiB
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Screen Target display unit initialized
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Fifo max 0x00040000 min 0x00001000 cap 0x0000077f
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Using command buffers with DMA pool.
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] Available shader model: Legacy.
[Tue Mar  3 13:26:29 2026] [drm] Initialized vmwgfx 2.20.0 for 0000:00:0f.0 on minor 0
[Tue Mar  3 13:26:29 2026] fbcon: vmwgfxdrmfb (fb0) is primary device
[Tue Mar  3 13:26:29 2026] Console: switching to colour frame buffer device 160x48
[Tue Mar  3 13:26:29 2026] vmwgfx 0000:00:0f.0: [drm] fb0: vmwgfxdrmfb frame buffer device
[Tue Mar  3 13:26:29 2026] input: PC Speaker as /devices/platform/pcspkr/input/input5
[Tue Mar  3 13:26:29 2026] raid6: avx2x4   gen() 13119 MB/s
[Tue Mar  3 13:26:29 2026] raid6: avx2x2   gen() 15119 MB/s
[Tue Mar  3 13:26:29 2026] Error: Driver 'pcspkr' is already registered, aborting...
[Tue Mar  3 13:26:29 2026] raid6: avx2x1   gen() 13597 MB/s
[Tue Mar  3 13:26:29 2026] raid6: using algorithm avx2x2 gen() 15119 MB/s
[Tue Mar  3 13:26:29 2026] raid6: .... xor() 13155 MB/s, rmw enabled
[Tue Mar  3 13:26:29 2026] raid6: using avx2x2 recovery algorithm
[Tue Mar  3 13:26:29 2026] xor: automatically using best checksumming function   avx
[Tue Mar  3 13:26:29 2026] Btrfs loaded, zoned=yes, fsverity=yes
[Tue Mar  3 13:26:29 2026] BTRFS: device label NAS04_POOL01 devid 4 transid 193529 /dev/sdb (8:16) scanned by (udev-worker) (730)
[Tue Mar  3 13:26:29 2026] BTRFS: device label NAS04_POOL01 devid 3 transid 193529 /dev/sda (8:0) scanned by (udev-worker) (735)
[Tue Mar  3 13:26:29 2026] BTRFS: device label NAS04_POOL01 devid 1 transid 193529 /dev/sdd (8:48) scanned by (udev-worker) (733)
[Tue Mar  3 13:26:29 2026] BTRFS: device label NAS04_POOL01 devid 2 transid 193529 /dev/sdc (8:32) scanned by (udev-worker) (751)
[Tue Mar  3 13:26:29 2026] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
[Tue Mar  3 13:26:29 2026] cryptd: max_cpu_qlen set to 1000
[Tue Mar  3 13:26:29 2026] AES CTR mode by8 optimization enabled
[Tue Mar  3 13:27:28 2026] dca service started, version 1.12.1
[Tue Mar  3 13:27:28 2026] ioatdma: Intel(R) QuickData Technology Driver 5.00
[Tue Mar  3 13:27:28 2026] NTB Resource Split driver, version 1
[Tue Mar  3 13:27:28 2026] Software Queue-Pair Transport over NTB, version 4
[Tue Mar  3 13:27:30 2026] vmxnet3 0000:13:00.0 ens224: intr type 3, mode 0, 5 vectors allocated
[Tue Mar  3 13:27:30 2026] vmxnet3 0000:13:00.0 ens224: NIC Link is Up 10000 Mbps
[Tue Mar  3 13:27:32 2026] NET: Registered PF_VSOCK protocol family
[Tue Mar  3 13:27:33 2026] NFSD: Using nfsdcld client tracking operations.
[Tue Mar  3 13:27:33 2026] NFSD: no clients to reclaim, skipping NFSv4 grace period (net f0000000)
[Tue Mar  3 13:27:33 2026] DLM installed
[Tue Mar  3 13:27:33 2026] [4631]: scst: User interface thread started
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi1, channel 0, id 0, lun 0, type 5
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 0, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 1, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 2, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 3, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 4, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 5, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 6, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi2, channel 0, id 7, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi3, channel 0, id 0, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4439]: scst: Attached to scsi3, channel 0, id 1, lun 0, type 0
[Tue Mar  3 13:27:33 2026] [4645]: scst: Init thread started
[Tue Mar  3 13:27:33 2026] [4647]: scst: Task management thread started
[Tue Mar  3 13:27:33 2026] [4439]: scst: Target template copy_manager registered successfully
[Tue Mar  3 13:27:33 2026] [4439]: scst: Target copy_manager_tgt for template copy_manager registered successfully
[Tue Mar  3 13:27:33 2026] [4439]: scst: Using security group "copy_manager_tgt" for initiator "copy_manager_sess" (target copy_manager_tgt)
[Tue Mar  3 13:27:33 2026] [4439]: scst: SCST version 3.10.0-pre (revision=) loaded successfully (global max mem for commands ignored, per device 1599MB)
[Tue Mar  3 13:27:33 2026] [4439]: scst: Enabled features: TRACING
[Tue Mar  3 13:27:33 2026] [4648]: scst: Management thread started
[Tue Mar  3 13:27:33 2026] [4652]: scst: Virtual device handler vdisk_fileio for type 0 registered successfully
[Tue Mar  3 13:27:33 2026] [4652]: scst: Virtual device handler vdisk_blockio for type 0 registered successfully
[Tue Mar  3 13:27:33 2026] [4652]: scst: Virtual device handler vdisk_nullio for type 0 registered successfully
[Tue Mar  3 13:27:33 2026] [4652]: scst: Virtual device handler vcdrom for type 5 registered successfully
[Tue Mar  3 13:27:33 2026] [4697]: iscsi-scst: iSCSI SCST Target - version 3.10.0-pre
[Tue Mar  3 13:27:33 2026] [4697]: iscsi-scst: Registered iSCSI transport: iSCSI-TCP
[Tue Mar  3 13:27:33 2026] [4697]: scst: Target template iscsi registered successfully
[Tue Mar  3 13:27:33 2026] [4738]: iscsi-scst: Read thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4739]: iscsi-scst: Read thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4740]: iscsi-scst: Read thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4741]: iscsi-scst: Read thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4743]: iscsi-scst: Write thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4744]: iscsi-scst: Write thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4746]: iscsi-scst: Write thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4747]: iscsi-scst: Write thread for pool 000000001538857d started
[Tue Mar  3 13:27:33 2026] [4631]: scst: Removed all devices from group copy_manager_tgt
[Tue Mar  3 13:27:33 2026] [4762]: scst: Target iqn.2005-10.org.freenas.ctl:nas04isci for template iscsi registered successfully
[Tue Mar  3 13:27:34 2026] [4631]: scst: Added name *#10. to group security_group (target iqn.2005-10.org.freenas.ctl:nas04isci)
[Tue Mar  3 14:07:20 2026] loop0: detected capacity change from 0 to 3277304
[Tue Mar  3 14:07:20 2026] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[Tue Mar  3 20:03:01 2026] loop0: detected capacity change from 0 to 3277304
26

Have you ran the long SMART on sdb?

If so whats the output of smartctl -a /dev/sdb

and ls -l /dev/disk/by-id/ | grep sdb

27 
root@NAS04[/]# 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:     HGST Ultrastar 7K6000
Device Model:     HGST HUS726060ALE610
Serial Number:    NAGL4SAY
LU WWN Device Id: 5 000cca 242c84085
Firmware Version: APGNT7J0
User Capacity:    6,001,175,126,016 bytes [6.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database 7.3/5528
ATA Version is:   ACS-2, ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Wed Mar  4 12:33:12 2026 EST
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:                (  113) seconds.
Offline data collection
capabilities:                    (0x5b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        No 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 881) minutes.
SCT capabilities:              (0x003d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000b   100   100   016    Pre-fail  Always       -       0
  2 Throughput_Performance  0x0005   137   137   054    Pre-fail  Offline      -       104
  3 Spin_Up_Time            0x0007   135   135   024    Pre-fail  Always       -       499 (Average 472)
  4 Start_Stop_Count        0x0012   100   100   000    Old_age   Always       -       127
  5 Reallocated_Sector_Ct   0x0033   100   100   005    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000b   100   100   067    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0005   128   128   020    Pre-fail  Offline      -       18
  9 Power_On_Hours          0x0012   089   089   000    Old_age   Always       -       82052
 10 Spin_Retry_Count        0x0013   100   100   060    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       117
192 Power-Off_Retract_Count 0x0032   081   081   000    Old_age   Always       -       23704
193 Load_Cycle_Count        0x0012   081   081   000    Old_age   Always       -       23704
194 Temperature_Celsius     0x0002   181   181   000    Old_age   Always       -       33 (Min/Max 11/54)
196 Reallocated_Event_Count 0x0032   100   100   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0022   100   100   000    Old_age   Always       -       24
198 Offline_Uncorrectable   0x0008   100   100   000    Old_age   Offline      -       29
199 UDMA_CRC_Error_Count    0x000a   200   200   000    Old_age   Always       -       0

SMART Error Log Version: 1
ATA Error Count: 16 (device log contains only the most recent five errors)
        CR = Command Register [HEX]
        FR = Features Register [HEX]
        SC = Sector Count Register [HEX]
        SN = Sector Number Register [HEX]
        CL = Cylinder Low Register [HEX]
        CH = Cylinder High Register [HEX]
        DH = Device/Head Register [HEX]
        DC = Device Command Register [HEX]
        ER = Error register [HEX]
        ST = Status register [HEX]
Powered_Up_Time is measured from power on, and printed as
DDd+hh:mm:SS.sss where DD=days, hh=hours, mm=minutes,
SS=sec, and sss=millisec. It "wraps" after 49.710 days.

Error 16 occurred at disk power-on lifetime: 16170 hours (673 days + 18 hours)
  When the command that caused the error occurred, the device was doing SMART Offline or Self-test.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 00 00 18 3e 77 40 00   1d+05:54:18.301  READ FPDMA QUEUED
  60 e8 08 18 42 77 40 00   1d+05:54:15.506  READ FPDMA QUEUED
  60 88 08 48 3b 77 40 00   1d+05:54:15.442  READ FPDMA QUEUED
  60 00 00 48 37 77 40 00   1d+05:54:15.442  READ FPDMA QUEUED
  61 08 28 40 ef a0 40 00   1d+05:54:15.407  WRITE FPDMA QUEUED

Error 15 occurred at disk power-on lifetime: 16155 hours (673 days + 3 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 18 08 78 5e 23 40 00      15:01:08.830  READ FPDMA QUEUED
  60 08 08 e8 5b 23 40 00      15:01:05.985  READ FPDMA QUEUED
  60 d8 10 e8 39 23 40 00      15:01:05.984  READ FPDMA QUEUED
  60 20 00 a8 fb 22 40 00      15:01:05.973  READ FPDMA QUEUED
  60 48 08 80 e2 22 40 00      15:01:05.972  READ FPDMA QUEUED

Error 14 occurred at disk power-on lifetime: 16155 hours (673 days + 3 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 10 08 20 7d 17 40 00      15:00:51.438  READ FPDMA QUEUED
  60 08 08 b0 7a 17 40 00      15:00:48.515  READ FPDMA QUEUED
  60 08 08 50 78 17 40 00      15:00:48.505  READ FPDMA QUEUED
  60 08 08 40 27 17 40 00      15:00:48.490  READ FPDMA QUEUED
  60 48 10 40 21 17 40 00      15:00:48.489  READ FPDMA QUEUED

Error 13 occurred at disk power-on lifetime: 16155 hours (673 days + 3 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 08 10 c8 5a 6f 40 00      14:32:49.245  READ FPDMA QUEUED
  60 08 10 d8 58 6f 40 00      14:32:46.383  READ FPDMA QUEUED
  60 08 10 00 57 6f 40 00      14:32:46.368  READ FPDMA QUEUED
  60 10 08 c0 fb 6d 40 00      14:32:46.361  READ FPDMA QUEUED
  60 08 10 f8 fa 6b 40 00      14:32:46.359  READ FPDMA QUEUED

Error 12 occurred at disk power-on lifetime: 16154 hours (673 days + 2 hours)
  When the command that caused the error occurred, the device was active or idle.

  After command completion occurred, registers were:
  ER ST SC SN CL CH DH
  -- -- -- -- -- -- --
  40 41 00 00 00 00 00  Error: UNC at LBA = 0x00000000 = 0

  Commands leading to the command that caused the error were:
  CR FR SC SN CL CH DH DC   Powered_Up_Time  Command/Feature_Name
  -- -- -- -- -- -- -- --  ----------------  --------------------
  60 38 00 80 05 6b 40 00      14:07:53.235  READ FPDMA QUEUED
  60 38 00 b8 03 6b 40 00      14:07:49.977  READ FPDMA QUEUED
  60 20 08 38 fa 6a 40 00      14:07:49.943  READ FPDMA QUEUED
  60 08 00 08 95 1b 40 00      14:07:49.942  READ FPDMA QUEUED
  60 08 08 b0 ee 0b 40 00      14:07:49.940  READ FPDMA QUEUED

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed without error       00%     16507         -
# 2  Extended offline    Aborted by host               90%     16493         -
# 3  Extended offline    Completed without error       00%     16199         -
# 4  Extended offline    Aborted by host               90%     16185         -
# 5  Short offline       Completed without error       00%     16181         -
# 6  Short offline       Completed without error       00%     16181         -
# 7  Short offline       Completed without error       00%     16174         -
# 8  Extended offline    Interrupted (host reset)      90%     16146         -
# 9  Short offline       Completed without error       00%     16140         -
#10  Short offline       Completed without error       00%       282         -
#11  Short offline       Completed without error       00%       258         -
#12  Short offline       Completed without error       00%       234         -
#13  Short offline       Completed without error       00%       210         -
#14  Short offline       Completed without error       00%       186         -

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

root@NAS04[/]# ls -l /dev/disk/by-id/ | grep sdb
lrwxrwxrwx 1 root root  9 Mar  3 13:26 ata-HGST_HUS726060ALE610_NAGL4SAY -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar  3 13:26 ata-HGST_HUS726060ALE610_NAGL4SAY-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Mar  3 13:26 ata-HGST_HUS726060ALE610_NAGL4SAY-part2 -> ../../sdb2
lrwxrwxrwx 1 root root  9 Mar  3 13:26 wwn-0x5000cca242c84085 -> ../../sdb
lrwxrwxrwx 1 root root 10 Mar  3 13:26 wwn-0x5000cca242c84085-part1 -> ../../sdb1
lrwxrwxrwx 1 root root 10 Mar  3 13:26 wwn-0x5000cca242c84085-part2 -> ../../sdb2
28

I think sdb is causing all the issues but it’s not fully dead yet. Personally I’d power down and remove sdb (check serial numbers correspond beforehand). Then power up and see if it either auto imports or if you can import it albeit in a degraded state. You have a Z2 so losing a drive shouldn’t be the end of the world.

29

same result as before

cannot import 'NAS04_VOL01': one or more devices is currently unavailable

I can shutdown the server and try different cables and/or new/different HBA.

30

Have you tried this?

31

yep

cannot import 'NAS04_VOL01': one or more devices is currently unavailable
32

Tried sudo zdb -e command:

root@NAS04[~]# sudo zdb -e NAS04_VOL01

Configuration for import:
        vdev_children: 1
        version: 5000
        pool_guid: 902485976026651984
        name: 'NAS04_VOL01'
        state: 0
        hostid: 925905460
        hostname: 'NAS04'
        vdev_tree:
            type: 'root'
            id: 0
            guid: 902485976026651984
            children[0]:
                type: 'raidz'
                id: 0
                guid: 5829666678129938293
                nparity: 2
                raidz_expand_txgs[0]: 54290756
                raidz_expand_txgs[1]: 54301985
                raidz_expand_txgs[2]: 54314233
                metaslab_array: 41
                metaslab_shift: 37
                ashift: 12
                asize: 41993141485568
                is_log: 0
                create_txg: 4
                children[0]:
                    type: 'disk'
                    id: 0
                    guid: 10506769506302721900
                    path: '/dev/sdb2'
                    DTL: 335
                    create_txg: 4
                children[1]:
                    type: 'disk'
                    id: 1
                    guid: 18192056191162199573
                    DTL: 334
                    create_txg: 4
                    path: '/dev/sdc2'
                children[2]:
                    type: 'disk'
                    id: 2
                    guid: 1364921251938226754
                    DTL: 333
                    create_txg: 4
                    path: '/dev/sdb2'
                children[3]:
                    type: 'disk'
                    id: 3
                    guid: 12288165796552003558
                    DTL: 332
                    create_txg: 4
                    path: '/dev/sda2'
                children[4]:
                    type: 'disk'
                    id: 4
                    guid: 3130116537688070235
                    whole_disk: 0
                    DTL: 595
                    create_txg: 4
                    path: '/dev/sde1'
                children[5]:
                    type: 'disk'
                    id: 5
                    guid: 17340071994985452923
                    whole_disk: 0
                    DTL: 12699
                    create_txg: 4
                    path: '/dev/sdd1'
                children[6]:
                    type: 'disk'
                    id: 6
                    guid: 15081931530192833772
                    whole_disk: 0
                    DTL: 458
                    create_txg: 4
                    path: '/dev/sdf1'
                children[7]:
                    type: 'disk'
                    id: 7
                    guid: 13464644164560822966
                    whole_disk: 0
                    create_txg: 4
                    path: '/dev/sdg1'
        load-policy:
            load-request-txg: 18446744073709551615
            load-rewind-policy: 2
zdb: can't open 'NAS04_VOL01': Input/output error

ZFS_DBGMSG(zdb) START:
metaslab.c:1687:spa_set_allocator(): spa allocator: dynamic
spa.c:6773:spa_import(): spa_import: importing NAS04_VOL01
spa_misc.c:429:spa_load_note(): spa_load(NAS04_VOL01, config trusted): LOADING
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdf1': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdc2': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdd1': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sde1': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdg1': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sda2': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdb2': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdb2': probe done, cant_read=0 cant_write=1
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdb2': vdev_validate: config guid doesn't match label guid
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdb2': CONFIG: guid 10506769506302721900, top_guid 5829666678129938293
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdb2': LABEL: guid 1364921251938226754, top_guid 5829666678129938293, aux_guid 0
vdev.c:183:vdev_dbgmsg(): disk vdev '/dev/sdc2': best uberblock found for spa NAS04_VOL01. txg 54314393
spa_misc.c:429:spa_load_note(): spa_load(NAS04_VOL01, config untrusted): using uberblock with txg=54314393
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=0,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=1,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:2990:raidz_reconstruct(): simulating failure of col 1 devidx 1
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=2,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:2990:raidz_reconstruct(): simulating failure of col 2 devidx 2
vdev_raidz.c:2057:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x nt=1 cols=3 md=0 mp=0)
vdev_raidz.c:2067:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x col=0 devid=0 offset=3000019e000 error=6)
vdev_raidz.c:2067:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x col=1 devid=1 offset=3000019e000 error=0)
vdev_raidz.c:2067:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x col=2 devid=2 offset=3000019e000 error=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=3,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=4,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=5,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=6,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=7,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=8,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=9,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:2990:raidz_reconstruct(): simulating failure of col 1 devidx 1
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=10,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:2990:raidz_reconstruct(): simulating failure of col 2 devidx 2
vdev_raidz.c:2057:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x nt=1 cols=3 md=0 mp=0)
vdev_raidz.c:2067:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x col=0 devid=0 offset=3000019e000 error=6)
vdev_raidz.c:2067:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x col=1 devid=1 offset=3000019e000 error=0)
vdev_raidz.c:2067:vdev_raidz_reconstruct_row(): reconstruct(rm=0x56397cd80880x col=2 devid=2 offset=3000019e000 error=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=11,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=12,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=13,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=14,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=15,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
vdev_raidz.c:3061:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x) checksum failed
vdev_raidz.c:2932:raidz_reconstruct(): raidz_reconstruct_expanded(zio=0x56397cd80440x ltgts=16,26,22073 ntgts=1
vdev_raidz.c:2945:raidz_reconstruct(): raidz_reconstruct_expanded(row=0)
33

I tried different (new) cables but no luck. :frowning:

34

Connected the drives to ubuntu VM with ZfsSpy

:/$ sudo zpool import -f
pool: NAS04_VOL01
id: 902485976026651984
state: UNAVAIL
status: The pool was last accessed by another system.
action: The pool cannot be imported due to damaged devices or data.
see: 

config:

    NAS04_VOL01                               UNAVAIL  unsupported feature(s)
      raidz2-0                                ONLINE
        sda2                                  ONLINE
        sdd2                                  ONLINE
        sdb2                                  ONLINE
        sdc2                                  ONLINE
        2ec5af01-18d9-4a36-93b0-9e87c0ac5221  ONLINE
        2b029f0b-48b0-4346-a18f-4357a9836164  ONLINE
        6cffcfba-8513-4bb4-9962-e17577bca519  ONLINE
        bee5c69c-0c7d-4c93-bdc0-d4c755ca5071  ONLINE



:/$ sudo zdb -e NAS04_VOL01

Configuration for import:
vdev_children: 1
version: 5000
pool_guid: 902485976026651984
name: ‘NAS04_VOL01’
state: 0
hostid: 925905460
hostname: ‘NAS04’
vdev_tree:
type: ‘root’
id: 0
guid: 902485976026651984
children[0]:
type: ‘raidz’
id: 0
guid: 5829666678129938293
nparity: 2
raidz_expand_txgs[0]: 54290756
raidz_expand_txgs[1]: 54301985
raidz_expand_txgs[2]: 54314233
metaslab_array: 41
metaslab_shift: 37
ashift: 12
asize: 41993141485568
is_log: 0
create_txg: 4
children[0]:
type: ‘disk’
id: 0
guid: 10506769506302721900
DTL: 335
create_txg: 4
path: ‘/dev/sda2’
children[1]:
type: ‘disk’
id: 1
guid: 18192056191162199573
DTL: 334
create_txg: 4
path: ‘/dev/sdd2’
children[2]:
type: ‘disk’
id: 2
guid: 1364921251938226754
DTL: 333
create_txg: 4
path: ‘/dev/sdb2’
children[3]:
type: ‘disk’
id: 3
guid: 12288165796552003558
DTL: 332
create_txg: 4
path: ‘/dev/sdc2’
children[4]:
type: ‘disk’
id: 4
guid: 3130116537688070235
whole_disk: 0
DTL: 595
create_txg: 4
path: ‘/dev/disk/by-partuuid/2ec5af01-18d9-4a36-93b0-9e87c0ac5221’
children[5]:
type: ‘disk’
id: 5
guid: 17340071994985452923
whole_disk: 0
DTL: 12699
create_txg: 4
path: ‘/dev/disk/by-partuuid/2b029f0b-48b0-4346-a18f-4357a9836164’
children[6]:
type: ‘disk’
id: 6
guid: 15081931530192833772
whole_disk: 0
DTL: 458
create_txg: 4
path: ‘/dev/disk/by-partuuid/6cffcfba-8513-4bb4-9962-e17577bca519’
children[7]:
type: ‘disk’
id: 7
guid: 13464644164560822966
whole_disk: 0
create_txg: 4
path: ‘/dev/disk/by-partuuid/bee5c69c-0c7d-4c93-bdc0-d4c755ca5071’
load-policy:
load-request-txg: 18446744073709551615
load-rewind-policy: 2
zdb: can’t open ‘NAS04_VOL01’: Operation not supported

ZFS_DBGMSG(zdb) START:
spa.c:6538:spa_import(): spa_import: importing NAS04_VOL01
spa_misc.c:418:spa_load_note(): spa_load(NAS04_VOL01, config trusted): LOADING
vdev.c:161:vdev_dbgmsg(): disk vdev ‘/dev/sdd2’: best uberblock found for spa NAS04_VOL01. txg 54314393
spa_misc.c:418:spa_load_note(): spa_load(NAS04_VOL01, config untrusted): using uberblock with txg=54314393
spa_misc.c:404:spa_load_failed(): spa_load(NAS04_VOL01, config untrusted): FAILED: some features are unsupported
spa_misc.c:418:spa_load_note(): spa_load(NAS04_VOL01, config untrusted): UNLOADING
ZFS_DBGMSG(zdb) EN
35

screenshots from ZFS Spy GUI

image
image1855×1173 154 KB

image
image1920×1535 1.2 MB