Are All Disks Failing?

J

James Cameron

Cadet
Joined
Jul 23, 2022
Messages
9
I received an alert indicating that one of the disks has 8 unreadable and uncorrectable sectors. With me being brand new to ZFS and TrueNAS, I did some research to try to figure out what this all means (I assumed failing disk, but wanted to be sure). I found others with similar errors and the common request was to run the "smartctl" for additional information.

I ran it on the problematic drive first for obvious reasons, but my curiosity led me to run it on the others. I found a comment indicating that a non-zero Raw_Read_Error_Rate value is a sign of a failing disk. To my surprise, all 4 of my disks have seemingly high values which has caused me some concern. For reference, 2 of the disks are approaching 5 years old and the other 2 are new (all four are 4TB Seagate Ironwolf NAS drives).

For what it's worth, I have scrub tasks set to run every 7 days and long S.M.A.R.T. tests set to run monthly. I've had no issues pop up until now, though admittedly my journey with TrueNAS started about 2 months ago...

The "smartctl" results for all four disks below (TrueNAS alerted me to the issue identified in Disk 4 - sde). Are any, or all, of my disks failing? I'd be very appreciative of any support that this community is able to provide!

Disk 1 - sdb
Code:
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.10.120+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate IronWolf
Device Model:     ST4000VN008-2DR166
Serial Number:    ZGY04QN3
LU WWN Device Id: 5 000c50 0a3164c39
Firmware Version: SC60
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5980 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sat Jul 23 17:24:03 2022 MDT
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:                (  581) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 618) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x50bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   079   064   044    Pre-fail  Always       -       80394304
  3 Spin_Up_Time            0x0003   093   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   096   096   020    Old_age   Always       -       5005
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   094   060   045    Pre-fail  Always       -       2311954274
  9 Power_On_Hours          0x0032   059   059   000    Old_age   Always       -       36706 (253 231 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   096   096   020    Old_age   Always       -       4722
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   059   055   040    Old_age   Always       -       41 (Min/Max 23/41)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       88
193 Load_Cycle_Count        0x0032   098   098   000    Old_age   Always       -       5070
194 Temperature_Celsius     0x0022   041   045   000    Old_age   Always       -       41 (0 15 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       36684h+14m+55.109s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       106593731988
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       153903393470

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%     36212         -
# 2  Short offline       Completed without error       00%     35220         -
# 3  Short offline       Completed without error       00%     34500         -
# 4  Short offline       Completed without error       00%     33756         -
# 5  Short offline       Completed without error       00%     33084         -
# 6  Short offline       Completed without error       00%     32340         -
# 7  Short offline       Completed without error       00%     31596         -
# 8  Short offline       Completed without error       00%     30876         -
# 9  Short offline       Completed without error       00%     30132         -
#10  Short offline       Completed without error       00%     29412         -
#11  Short offline       Completed without error       00%     28668         -
#12  Short offline       Completed without error       00%     27924         -
#13  Short offline       Completed without error       00%     27204         -
#14  Short offline       Completed without error       00%     26460         -
#15  Short offline       Completed without error       00%     25740         -
#16  Short offline       Completed without error       00%     24996         -
#17  Short offline       Completed without error       00%     24324         -
#18  Short offline       Completed without error       00%     23580         -
#19  Short offline       Completed without error       00%     22836         -
#20  Short offline       Completed without error       00%     22116         -
#21  Short offline       Completed without error       00%     21373         -

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.


Disk 2 - sdc
Code:
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.10.120+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate IronWolf
Device Model:     ST4000VN008-2DR166
Serial Number:    ZDHBHW7V
LU WWN Device Id: 5 000c50 0e4b32449
Firmware Version: SC60
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5980 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sat Jul 23 17:25:00 2022 MDT
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:                (  581) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 622) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x50bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   080   064   044    Pre-fail  Always       -       94488552
  3 Spin_Up_Time            0x0003   093   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       12
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   079   060   045    Pre-fail  Always       -       81102333
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       975 (119 130 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       12
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   056   056   040    Old_age   Always       -       44 (Min/Max 23/44)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       4
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       18
194 Temperature_Celsius     0x0022   044   044   000    Old_age   Always       -       44 (0 23 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       974h+55m+11.784s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       15193554136
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       26236306191

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%       480         -

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.


Disk 3 - sdd
Code:
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.10.120+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate IronWolf
Device Model:     ST4000VN008-2DR166
Serial Number:    ZDHBHYQE
LU WWN Device Id: 5 000c50 0e4b2873f
Firmware Version: SC60
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5980 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sat Jul 23 17:25:29 2022 MDT
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:                (  581) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 618) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x50bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   080   064   044    Pre-fail  Always       -       101950984
  3 Spin_Up_Time            0x0003   093   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       12
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   079   060   045    Pre-fail  Always       -       82702768
  9 Power_On_Hours          0x0032   099   099   000    Old_age   Always       -       975 (215 228 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       12
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   056   056   040    Old_age   Always       -       44 (Min/Max 23/44)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       3
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       18
194 Temperature_Celsius     0x0022   044   044   000    Old_age   Always       -       44 (0 23 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       974h+54m+32.411s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       15193962960
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       26239818076

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%       480         -

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.


Disk 4 - sde
Code:
smartctl 7.2 2020-12-30 r5155 [x86_64-linux-5.10.120+truenas] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate IronWolf
Device Model:     ST4000VN008-2DR166
Serial Number:    ZGY063XW
LU WWN Device Id: 5 000c50 0a326a89f
Firmware Version: SC60
User Capacity:    4,000,787,030,016 bytes [4.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5980 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-3 T13/2161-D revision 5
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Sat Jul 23 17:25:50 2022 MDT
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:                (  591) seconds.
Offline data collection
capabilities:                    (0x7b) SMART execute Offline immediate.
                                        Auto Offline data collection on/off support.
                                        Suspend Offline collection upon new
                                        command.
                                        Offline surface scan supported.
                                        Self-test supported.
                                        Conveyance Self-test supported.
                                        Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                                        power-saving mode.
                                        Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                                        General Purpose Logging supported.
Short self-test routine
recommended polling time:        (   1) minutes.
Extended self-test routine
recommended polling time:        ( 625) minutes.
Conveyance self-test routine
recommended polling time:        (   2) minutes.
SCT capabilities:              (0x50bd) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   084   064   044    Pre-fail  Always       -       240878952
  3 Spin_Up_Time            0x0003   093   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   096   096   020    Old_age   Always       -       5006
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   095   060   045    Pre-fail  Always       -       2888492656
  9 Power_On_Hours          0x0032   059   059   000    Old_age   Always       -       36714 (42 205 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   096   096   020    Old_age   Always       -       4723
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   060   057   040    Old_age   Always       -       40 (Min/Max 23/40)
191 G-Sense_Error_Rate      0x0032   100   100   000    Old_age   Always       -       0
192 Power-Off_Retract_Count 0x0032   100   100   000    Old_age   Always       -       85
193 Load_Cycle_Count        0x0032   098   098   000    Old_age   Always       -       5071
194 Temperature_Celsius     0x0022   040   043   000    Old_age   Always       -       40 (0 15 0 0 0)
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       8
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       8
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       36692h+51m+14.234s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       106560402259
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       273886637822

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%     36219         -
# 2  Short offline       Completed without error       00%     35227         -
# 3  Short offline       Completed without error       00%     34507         -
# 4  Short offline       Completed without error       00%     33763         -
# 5  Short offline       Completed without error       00%     33091         -
# 6  Short offline       Completed without error       00%     32347         -
# 7  Short offline       Completed without error       00%     31603         -
# 8  Short offline       Completed without error       00%     30883         -
# 9  Short offline       Completed without error       00%     30140         -
#10  Short offline       Completed without error       00%     29420         -
#11  Short offline       Completed without error       00%     28675         -
#12  Short offline       Completed without error       00%     27932         -
#13  Short offline       Completed without error       00%     27212         -
#14  Short offline       Completed without error       00%     26467         -
#15  Short offline       Completed without error       00%     25747         -
#16  Short offline       Completed without error       00%     25003         -
#17  Short offline       Completed without error       00%     24331         -
#18  Short offline       Completed without error       00%     23587         -
#19  Short offline       Completed without error       00%     22843         -
#20  Short offline       Completed without error       00%     22123         -
#21  Short offline       Completed without error       00%     21381         -

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.
 
Samuel Tai

Samuel Tai

Never underestimate your own stupidity
Moderator
Joined
Apr 24, 2020
Messages
5,399
No need to fret. IronWolfs are known to have oddball values in this field. Run SeaTools to see the actual read error rate.
 
J

James Cameron

Cadet
Joined
Jul 23, 2022
Messages
9
Samuel Tai said:
No need to fret. IronWolfs are known to have oddball values in this field. Run SeaTools to see the actual read error rate.
Click to expand...
What a relief - thank you! I'll run SeaTools as suggested. I'm assuming I'm hoping for zeros on read error rate?

Are the sector errors on (Disk 4 - sde) something to be concerned about?

Code:
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       8
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       8
 
Samuel Tai

Samuel Tai

Never underestimate your own stupidity
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5,399
James Cameron said:
Are the sector errors on (Disk 4 - sde) something to be concerned about?

Code:
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       8
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       8
Click to expand...

Possibly. Confirm with SeaTools. If these are real, replace this disk.
 
AlexGG

AlexGG

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Joined
Dec 13, 2018
Messages
171
James Cameron said:
found a comment indicating that a non-zero Raw_Read_Error_Rate value is a sign of a failing disk.
Click to expand...
Sometimes, but not with Seagate drives. Seagate raw values for Read Error Rate should generally be ignored. The (normalized) Value falling below Threshold is bad, but your drives do not have that. The interpretation of Raw value is vendor-specific, while Value and Worst are "higher is better" except 255 (which sometimes means unspecified/unknown), and "Value<Threshold is fault".

James Cameron said:
Are the sector errors on (Disk 4 - sde) something to be concerned about?
Click to expand...
Yes, especially if they increase over time.
 
J

James Cameron

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Jul 23, 2022
Messages
9
Thank you both! Sounds like I’ve got a drive to replace and likely three healthy drives (to be confirmed with SeaTools). Appreciate the help!
 
danb35

danb35

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James Cameron said:
Are the sector errors on (Disk 4 - sde) something to be concerned about?
Click to expand...
They are. What to do about them is kind of up to you and depends on a number of factors, including your risk tolerance and pool layout. Values in the single digits and stable, with passing SMART tests, in a RAIDZ2 pool, I'd probably leave the drive in place. If the number starts to increase, time for a new drive. If it starts failing SMART tests, time for a new drive.
 
J

James Cameron

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Jul 23, 2022
Messages
9
danb35 said:
They are. What to do about them is kind of up to you and depends on a number of factors, including your risk tolerance and pool layout. Values in the single digits and stable, with passing SMART tests, in a RAIDZ2 pool, I'd probably leave the drive in place. If the number starts to increase, time for a new drive. If it starts failing SMART tests, time for a new drive.
Click to expand...
That's very helpful - thank you! My configuration/status is as you described and the data I have is *mostly* non-essential with both local and off-site backups, so continuing to monitor sounds like a viable option.
 
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