Sanity check needed for my approach to "8 offline uncorrectable sectors"

[ingestre]

Hi. Can the community sanity check my approach to a possible failing disk? Details below....

I got a couple of alerts this morning on my SOHO TrueNAS

• Device: /dev/ada0, 8 Currently unreadable (pending) sectors. 2022-03-17 08:32:51 (Europe/London)
• Device: /dev/ada0, 8 Offline uncorrectable sectors. 2022-03-17 08:32:52 (Europe/London)

ada0 forms part of a 4 disk RAIDZ2 pool so I do have resiliancy to fall back on, but I should not ignore this alert. I gathered some further information using smartctl

Code:

root@freenas:~ # smartctl -x /dev/ada0
smartctl 7.2 2020-12-30 r5155 [FreeBSD 12.2-RELEASE-p12 amd64] (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:    ZM40MA1W
LU WWN Device Id: 5 000c50 0c4b8ced1
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: 3.0 Gb/s)
Local Time is:    Thu Mar 17 08:54:22 2022 GMT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Disabled
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Unavailable
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: 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:        ( 642) 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          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   068   064   044    -    6842920
  3 Spin_Up_Time            PO----   094   094   000    -    0
  4 Start_Stop_Count        -O--CK   100   100   020    -    9
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    32
  7 Seek_Error_Rate         POSR--   090   060   045    -    1021905094
  9 Power_On_Hours          -O--CK   080   080   000    -    17658 (140 179 0)
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    9
184 End-to-End_Error        -O--CK   100   100   099    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   100   000    -    0
189 High_Fly_Writes         -O-RCK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   068   043   040    -    32 (Min/Max 32/38)
191 G-Sense_Error_Rate      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   100   100   000    -    52
193 Load_Cycle_Count        -O--CK   100   100   000    -    80
194 Temperature_Celsius     -O---K   032   057   000    -    32 (0 19 0 0 0)
197 Current_Pending_Sector  -O--C-   100   100   000    -    8
198 Offline_Uncorrectable   ----C-   100   100   000    -    8
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   253   000    -    17656 (218 184 0)
241 Total_LBAs_Written      ------   100   253   000    -    27121755402
242 Total_LBAs_Read         ------   100   253   000    -    132349377260
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x13       GPL     R/O      1  SATA NCQ Send and Receive log
0x15       GPL     R/W      1  Rebuild Assist log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    512  Current Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS      24  Device vendor specific log
0xa2       GPL     VS    8160  Device vendor specific log
0xa6       GPL     VS     192  Device vendor specific log
0xa8-0xa9  GPL,SL  VS     136  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xb0       GPL     VS    9048  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc1       GPL,SL  VS      16  Device vendor specific log
0xd1       GPL     VS     136  Device vendor specific log
0xd2       GPL     VS   10000  Device vendor specific log
0xd3       GPL     VS    1920  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

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

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     17657         -
# 2  Short offline       Completed without error       00%     17649         -
# 3  Short offline       Completed without error       00%     17641         -
# 4  Short offline       Completed without error       00%     17633         -
# 5  Short offline       Completed without error       00%     17625         -
# 6  Short offline       Completed without error       00%     17617         -
# 7  Short offline       Completed without error       00%     17609         -
# 8  Short offline       Completed without error       00%     17601         -
# 9  Short offline       Completed without error       00%     17593         -
#10  Short offline       Completed without error       00%     17585         -
#11  Short offline       Completed without error       00%     17577         -
#12  Extended offline    Completed without error       00%     17514         -
#13  Short offline       Completed without error       00%     17497         -
#14  Short offline       Completed without error       00%     17489         -
#15  Short offline       Completed without error       00%     17481         -
#16  Short offline       Completed without error       00%     17473         -
#17  Short offline       Completed without error       00%     17465         -
#18  Short offline       Completed without error       00%     17457         -
#19  Short offline       Completed without error       00%     17449         -

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

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    32 Celsius
Power Cycle Min/Max Temperature:     32/38 Celsius
Lifetime    Min/Max Temperature:     19/57 Celsius
Under/Over Temperature Limit Count:   0/388

SCT Temperature History Version:     2
Temperature Sampling Period:         3 minutes
Temperature Logging Interval:        59 minutes
Min/Max recommended Temperature:      0/ 0 Celsius
Min/Max Temperature Limit:            0/ 0 Celsius
Temperature History Size (Index):    128 (8)

Index    Estimated Time   Temperature Celsius
   9    2022-03-12 03:30    34  ***************
  10    2022-03-12 04:29    34  ***************
  11    2022-03-12 05:28    33  **************
 ...    ..(  2 skipped).    ..  **************
  14    2022-03-12 08:25    33  **************
  15    2022-03-12 09:24    34  ***************
 ...    ..(  2 skipped).    ..  ***************
  18    2022-03-12 12:21    34  ***************
  19    2022-03-12 13:20    35  ****************
 ...    ..(  9 skipped).    ..  ****************
  29    2022-03-12 23:10    35  ****************
  30    2022-03-13 00:09    34  ***************
 ...    ..(  4 skipped).    ..  ***************
  35    2022-03-13 05:04    34  ***************
  36    2022-03-13 06:03    33  **************
  37    2022-03-13 07:02    34  ***************
  38    2022-03-13 08:01    33  **************
  39    2022-03-13 09:00    34  ***************
 ...    ..(  4 skipped).    ..  ***************
  44    2022-03-13 13:55    34  ***************
  45    2022-03-13 14:54    35  ****************
  46    2022-03-13 15:53    34  ***************
  47    2022-03-13 16:52    34  ***************
  48    2022-03-13 17:51    35  ****************
 ...    ..(  4 skipped).    ..  ****************
  53    2022-03-13 22:46    35  ****************
  54    2022-03-13 23:45    34  ***************
 ...    ..(  3 skipped).    ..  ***************
  58    2022-03-14 03:41    34  ***************
  59    2022-03-14 04:40    33  **************
 ...    ..(  3 skipped).    ..  **************
  63    2022-03-14 08:36    33  **************
  64    2022-03-14 09:35    34  ***************
 ...    ..(  3 skipped).    ..  ***************
  68    2022-03-14 13:31    34  ***************
  69    2022-03-14 14:30    35  ****************
  70    2022-03-14 15:29    35  ****************
  71    2022-03-14 16:28    35  ****************
  72    2022-03-14 17:27    34  ***************
  73    2022-03-14 18:26    35  ****************
 ...    ..(  3 skipped).    ..  ****************
  77    2022-03-14 22:22    35  ****************
  78    2022-03-14 23:21    34  ***************
 ...    ..(  3 skipped).    ..  ***************
  82    2022-03-15 03:17    34  ***************
  83    2022-03-15 04:16    33  **************
 ...    ..(  4 skipped).    ..  **************
  88    2022-03-15 09:11    33  **************
  89    2022-03-15 10:10    34  ***************
 ...    ..( 10 skipped).    ..  ***************
 100    2022-03-15 20:59    34  ***************
 101    2022-03-15 21:58    35  ****************
 102    2022-03-15 22:57    34  ***************
 ...    ..(  5 skipped).    ..  ***************
 108    2022-03-16 04:51    34  ***************
 109    2022-03-16 05:50    33  **************
 110    2022-03-16 06:49    33  **************
 111    2022-03-16 07:48    33  **************
 112    2022-03-16 08:47    34  ***************
 ...    ..(  4 skipped).    ..  ***************
 117    2022-03-16 13:42    34  ***************
 118    2022-03-16 14:41    33  **************
 119    2022-03-16 15:40    33  **************
 120    2022-03-16 16:39    33  **************
 121    2022-03-16 17:38    34  ***************
 ...    ..(  5 skipped).    ..  ***************
 127    2022-03-16 23:32    34  ***************
   0    2022-03-17 00:31    33  **************
 ...    ..(  5 skipped).    ..  **************
   6    2022-03-17 06:25    33  **************
   7    2022-03-17 07:24    32  *************
   8    2022-03-17 08:23    32  *************

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

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4               9  ---  Lifetime Power-On Resets
0x01  0x010  4           17658  ---  Power-on Hours
0x01  0x018  6     27121755402  ---  Logical Sectors Written
0x01  0x020  6      1182243876  ---  Number of Write Commands
0x01  0x028  6    132349377260  ---  Logical Sectors Read
0x01  0x030  6       322834290  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4       107809173  N--  Spindle Motor Power-on Hours
0x03  0x010  4       107791850  N--  Head Flying Hours
0x03  0x018  4              80  ---  Head Load Events
0x03  0x020  4              32  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               8  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4              53  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              32  ---  Current Temperature
0x05  0x010  1              33  ---  Average Short Term Temperature
0x05  0x018  1              40  ---  Average Long Term Temperature
0x05  0x020  1              57  ---  Highest Temperature
0x05  0x028  1               0  ---  Lowest Temperature
0x05  0x030  1              50  ---  Highest Average Short Term Temperature
0x05  0x038  1              33  ---  Lowest Average Short Term Temperature
0x05  0x040  1              47  ---  Highest Average Long Term Temperature
0x05  0x048  1              40  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              70  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4             201  ---  Number of Hardware Resets
0x06  0x010  4              81  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c) not supported

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            7  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

The reallocated sector count shows a raw value of 32. Hmmmm. Is this significant?
5 Reallocated_Sector_Ct PO--CK 100 100 010 - 32

SMART tests appear to be running. For this disk the short tests run every 8 hours Mon-Thu and the extended test on Friday morning. (Tomorrow). My guess is the last short SMART test which ran at 8AM(ish) picked up the error. The next short test is at 4PM and the next extended long test is tonight at midnight. The disk appears to be well in guarantee (until May 2023)

It is my opinion that 8 failed sectors is worrying and close to the "this is unacceptable" cutoff, but as the drive is still working I'm inclined to see what happens when the next short / long SMART tests complete.

I am steeling myself for the expense of replacement but holding off clicking "buy now" until I have more information. Does anybody know how many sectors need to be unreadable before Seagate will replace a drive under guarantee?

Is there anything else I should be doing. Have I done anything wrong so far? Is my approach sensible/sane or foolhardy/risky.

My thanks in advance for all responses.

 

[sretalla]

With those values, the drive will probably be kicked out of the pool soon, so if you would rather not be left with a pool in a degraded state at a time of ZFS's choosing, then do the replacement now.

I don't know the details of seagate's warranty, but it would certainly be worth approaching them with that smartctl output to see if they agree to do something.

 

[Etorix]

The reallocated sector count shows a raw value of 32. Hmmmm. Is this significant?
5 Reallocated_Sector_Ct PO--CK 100 100 010 - 32

Very much: There are already 32 sectors that are definitely parked out of use, and 8 suspicious sectors which will eventually join this list.
This disk is not healthy and it's getting worse. Replace a soon as possible!

I am steeling myself for the expense of replacement but holding off clicking "buy now" until I have more information. Does anybody know how many sectors need to be unreadable before Seagate will replace a drive under guarantee?

I have no experience with Seagate, but any non-zero value under #5, #197 or #198 should be a valid ground for claiming warranty.

 

[ingestre]

My thanks for your prompt replies. These wise words are very much appreciated.

I've now accepted the hit and now clicked "buy now" on a new drive. I'm going for double the capacity of the old drive with a view to upgrading the other disks in the pool at some point in the future to expand the pool size. (I'm currently at 67% capacity)

I shall also be attempting to return the dying drive under warranty. The replacement can function as a cold spare or backup I guess.

I'll post updates on the upcoming anticipated SMART checks / resilver / scrubs / returns-to-Seagate to assist others who follow......

 

[ingestre]

OK a couple of updates.

The short test completed without error
The extended test is showing a failed status

Code:

root@freenas:/usr/local/sbin # smartctl -x /dev/ada0
smartctl 7.2 2020-12-30 r5155 [FreeBSD 12.2-RELEASE-p12 amd64] (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:    ZM40MA1W
LU WWN Device Id: 5 000c50 0c4b8ced1
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: 3.0 Gb/s)
Local Time is:    Fri Mar 18 08:38:12 2022 GMT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
AAM feature is:   Unavailable
APM feature is:   Disabled
Rd look-ahead is: Enabled
Write cache is:   Enabled
DSN feature is:   Unavailable
ATA Security is:  Disabled, NOT FROZEN [SEC1]
Wt Cache Reorder: 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:      ( 113) The previous self-test completed having
                                        the read element of the test failed.
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:        ( 642) 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          FLAGS    VALUE WORST THRESH FAIL RAW_VALUE
  1 Raw_Read_Error_Rate     POSR--   074   064   044    -    27792504
  3 Spin_Up_Time            PO----   094   094   000    -    0
  4 Start_Stop_Count        -O--CK   100   100   020    -    9
  5 Reallocated_Sector_Ct   PO--CK   100   100   010    -    32
  7 Seek_Error_Rate         POSR--   090   060   045    -    1024907357
  9 Power_On_Hours          -O--CK   080   080   000    -    17682 (213 36 0)
 10 Spin_Retry_Count        PO--C-   100   100   097    -    0
 12 Power_Cycle_Count       -O--CK   100   100   020    -    9
184 End-to-End_Error        -O--CK   100   100   099    -    0
187 Reported_Uncorrect      -O--CK   100   100   000    -    0
188 Command_Timeout         -O--CK   100   100   000    -    0
189 High_Fly_Writes         -O-RCK   100   100   000    -    0
190 Airflow_Temperature_Cel -O---K   066   043   040    -    34 (Min/Max 32/38)
191 G-Sense_Error_Rate      -O--CK   100   100   000    -    0
192 Power-Off_Retract_Count -O--CK   100   100   000    -    52
193 Load_Cycle_Count        -O--CK   100   100   000    -    80
194 Temperature_Celsius     -O---K   034   057   000    -    34 (0 19 0 0 0)
197 Current_Pending_Sector  -O--C-   100   100   000    -    8
198 Offline_Uncorrectable   ----C-   100   100   000    -    8
199 UDMA_CRC_Error_Count    -OSRCK   200   200   000    -    0
240 Head_Flying_Hours       ------   100   253   000    -    17679 (17 168 0)
241 Total_LBAs_Written      ------   100   253   000    -    27141971882
242 Total_LBAs_Read         ------   100   253   000    -    132350110364
                            ||||||_ K auto-keep
                            |||||__ C event count
                            ||||___ R error rate
                            |||____ S speed/performance
                            ||_____ O updated online
                            |______ P prefailure warning

General Purpose Log Directory Version 1
SMART           Log Directory Version 1 [multi-sector log support]
Address    Access  R/W   Size  Description
0x00       GPL,SL  R/O      1  Log Directory
0x01           SL  R/O      1  Summary SMART error log
0x02           SL  R/O      5  Comprehensive SMART error log
0x03       GPL     R/O      5  Ext. Comprehensive SMART error log
0x04       GPL,SL  R/O      8  Device Statistics log
0x06           SL  R/O      1  SMART self-test log
0x07       GPL     R/O      1  Extended self-test log
0x09           SL  R/W      1  Selective self-test log
0x10       GPL     R/O      1  NCQ Command Error log
0x11       GPL     R/O      1  SATA Phy Event Counters log
0x13       GPL     R/O      1  SATA NCQ Send and Receive log
0x15       GPL     R/W      1  Rebuild Assist log
0x21       GPL     R/O      1  Write stream error log
0x22       GPL     R/O      1  Read stream error log
0x24       GPL     R/O    512  Current Device Internal Status Data log
0x30       GPL,SL  R/O      9  IDENTIFY DEVICE data log
0x80-0x9f  GPL,SL  R/W     16  Host vendor specific log
0xa1       GPL,SL  VS      24  Device vendor specific log
0xa2       GPL     VS    8160  Device vendor specific log
0xa6       GPL     VS     192  Device vendor specific log
0xa8-0xa9  GPL,SL  VS     136  Device vendor specific log
0xab       GPL     VS       1  Device vendor specific log
0xb0       GPL     VS    9048  Device vendor specific log
0xbe-0xbf  GPL     VS   65535  Device vendor specific log
0xc1       GPL,SL  VS      16  Device vendor specific log
0xd1       GPL     VS     136  Device vendor specific log
0xd2       GPL     VS   10000  Device vendor specific log
0xd3       GPL     VS    1920  Device vendor specific log
0xe0       GPL,SL  R/W      1  SCT Command/Status
0xe1       GPL,SL  R/W      1  SCT Data Transfer

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

SMART Extended Self-test Log Version: 1 (1 sectors)
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Extended offline    Completed: read failure       10%     17682         7760267536
# 2  Short offline       Completed without error       00%     17665         -
# 3  Short offline       Completed without error       00%     17657         -
# 4  Short offline       Completed without error       00%     17649         -
# 5  Short offline       Completed without error       00%     17641         -
# 6  Short offline       Completed without error       00%     17633         -
# 7  Short offline       Completed without error       00%     17625         -
# 8  Short offline       Completed without error       00%     17617         -
# 9  Short offline       Completed without error       00%     17609         -
#10  Short offline       Completed without error       00%     17601         -
#11  Short offline       Completed without error       00%     17593         -
#12  Short offline       Completed without error       00%     17585         -
#13  Short offline       Completed without error       00%     17577         -
#14  Extended offline    Completed without error       00%     17514         -
#15  Short offline       Completed without error       00%     17497         -
#16  Short offline       Completed without error       00%     17489         -
#17  Short offline       Completed without error       00%     17481         -
#18  Short offline       Completed without error       00%     17473         -
#19  Short offline       Completed without error       00%     17465         -

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

SCT Status Version:                  3
SCT Version (vendor specific):       522 (0x020a)
Device State:                        Active (0)
Current Temperature:                    35 Celsius
Power Cycle Min/Max Temperature:     32/38 Celsius
Lifetime    Min/Max Temperature:     19/57 Celsius
Under/Over Temperature Limit Count:   0/412

SCT Temperature History Version:     2
Temperature Sampling Period:         3 minutes
Temperature Logging Interval:        59 minutes
Min/Max recommended Temperature:      0/ 0 Celsius
Min/Max Temperature Limit:            0/ 0 Celsius
Temperature History Size (Index):    128 (32)

Index    Estimated Time   Temperature Celsius
  33    2022-03-13 03:06    34  ***************
  34    2022-03-13 04:05    34  ***************
  35    2022-03-13 05:04    34  ***************
  36    2022-03-13 06:03    33  **************
  37    2022-03-13 07:02    34  ***************
  38    2022-03-13 08:01    33  **************
  39    2022-03-13 09:00    34  ***************
 ...    ..(  4 skipped).    ..  ***************
  44    2022-03-13 13:55    34  ***************
  45    2022-03-13 14:54    35  ****************
  46    2022-03-13 15:53    34  ***************
  47    2022-03-13 16:52    34  ***************
  48    2022-03-13 17:51    35  ****************
 ...    ..(  4 skipped).    ..  ****************
  53    2022-03-13 22:46    35  ****************
  54    2022-03-13 23:45    34  ***************
 ...    ..(  3 skipped).    ..  ***************
  58    2022-03-14 03:41    34  ***************
  59    2022-03-14 04:40    33  **************
 ...    ..(  3 skipped).    ..  **************
  63    2022-03-14 08:36    33  **************
  64    2022-03-14 09:35    34  ***************
 ...    ..(  3 skipped).    ..  ***************
  68    2022-03-14 13:31    34  ***************
  69    2022-03-14 14:30    35  ****************
  70    2022-03-14 15:29    35  ****************
  71    2022-03-14 16:28    35  ****************
  72    2022-03-14 17:27    34  ***************
  73    2022-03-14 18:26    35  ****************
 ...    ..(  3 skipped).    ..  ****************
  77    2022-03-14 22:22    35  ****************
  78    2022-03-14 23:21    34  ***************
 ...    ..(  3 skipped).    ..  ***************
  82    2022-03-15 03:17    34  ***************
  83    2022-03-15 04:16    33  **************
 ...    ..(  4 skipped).    ..  **************
  88    2022-03-15 09:11    33  **************
  89    2022-03-15 10:10    34  ***************
 ...    ..( 10 skipped).    ..  ***************
 100    2022-03-15 20:59    34  ***************
 101    2022-03-15 21:58    35  ****************
 102    2022-03-15 22:57    34  ***************
 ...    ..(  5 skipped).    ..  ***************
 108    2022-03-16 04:51    34  ***************
 109    2022-03-16 05:50    33  **************
 110    2022-03-16 06:49    33  **************
 111    2022-03-16 07:48    33  **************
 112    2022-03-16 08:47    34  ***************
 ...    ..(  4 skipped).    ..  ***************
 117    2022-03-16 13:42    34  ***************
 118    2022-03-16 14:41    33  **************
 119    2022-03-16 15:40    33  **************
 120    2022-03-16 16:39    33  **************
 121    2022-03-16 17:38    34  ***************
 ...    ..(  5 skipped).    ..  ***************
 127    2022-03-16 23:32    34  ***************
   0    2022-03-17 00:31    33  **************
 ...    ..(  5 skipped).    ..  **************
   6    2022-03-17 06:25    33  **************
   7    2022-03-17 07:24    32  *************
   8    2022-03-17 08:23    32  *************
   9    2022-03-17 09:22    33  **************
  10    2022-03-17 10:21    33  **************
  11    2022-03-17 11:20    34  ***************
  12    2022-03-17 12:19    34  ***************
  13    2022-03-17 13:18    33  **************
 ...    ..(  3 skipped).    ..  **************
  17    2022-03-17 17:14    33  **************
  18    2022-03-17 18:13    34  ***************
 ...    ..(  5 skipped).    ..  ***************
  24    2022-03-18 00:07    34  ***************
  25    2022-03-18 01:06    36  *****************
 ...    ..(  2 skipped).    ..  *****************
  28    2022-03-18 04:03    36  *****************
  29    2022-03-18 05:02    35  ****************
 ...    ..(  2 skipped).    ..  ****************
  32    2022-03-18 07:59    35  ****************

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

Device Statistics (GP Log 0x04)
Page  Offset Size        Value Flags Description
0x01  =====  =               =  ===  == General Statistics (rev 1) ==
0x01  0x008  4               9  ---  Lifetime Power-On Resets
0x01  0x010  4           17682  ---  Power-on Hours
0x01  0x018  6     27141971882  ---  Logical Sectors Written
0x01  0x020  6      1183359266  ---  Number of Write Commands
0x01  0x028  6    132350110364  ---  Logical Sectors Read
0x01  0x030  6       322840441  ---  Number of Read Commands
0x01  0x038  6               -  ---  Date and Time TimeStamp
0x03  =====  =               =  ===  == Rotating Media Statistics (rev 1) ==
0x03  0x008  4       107809197  N--  Spindle Motor Power-on Hours
0x03  0x010  4       107791850  N--  Head Flying Hours
0x03  0x018  4              80  ---  Head Load Events
0x03  0x020  4              32  ---  Number of Reallocated Logical Sectors
0x03  0x028  4               0  ---  Read Recovery Attempts
0x03  0x030  4               0  ---  Number of Mechanical Start Failures
0x03  0x038  4               8  ---  Number of Realloc. Candidate Logical Sectors
0x03  0x040  4              53  ---  Number of High Priority Unload Events
0x04  =====  =               =  ===  == General Errors Statistics (rev 1) ==
0x04  0x008  4               0  ---  Number of Reported Uncorrectable Errors
0x04  0x010  4               0  ---  Resets Between Cmd Acceptance and Completion
0x05  =====  =               =  ===  == Temperature Statistics (rev 1) ==
0x05  0x008  1              35  ---  Current Temperature
0x05  0x010  1              33  ---  Average Short Term Temperature
0x05  0x018  1              39  ---  Average Long Term Temperature
0x05  0x020  1              57  ---  Highest Temperature
0x05  0x028  1               0  ---  Lowest Temperature
0x05  0x030  1              50  ---  Highest Average Short Term Temperature
0x05  0x038  1              33  ---  Lowest Average Short Term Temperature
0x05  0x040  1              47  ---  Highest Average Long Term Temperature
0x05  0x048  1              39  ---  Lowest Average Long Term Temperature
0x05  0x050  4               0  ---  Time in Over-Temperature
0x05  0x058  1              70  ---  Specified Maximum Operating Temperature
0x05  0x060  4               0  ---  Time in Under-Temperature
0x05  0x068  1               0  ---  Specified Minimum Operating Temperature
0x06  =====  =               =  ===  == Transport Statistics (rev 1) ==
0x06  0x008  4             201  ---  Number of Hardware Resets
0x06  0x010  4              81  ---  Number of ASR Events
0x06  0x018  4               0  ---  Number of Interface CRC Errors
                                |||_ C monitored condition met
                                ||__ D supports DSN
                                |___ N normalized value

Pending Defects log (GP Log 0x0c) not supported

SATA Phy Event Counters (GP Log 0x11)
ID      Size     Value  Description
0x000a  2            7  Device-to-host register FISes sent due to a COMRESET
0x0001  2            0  Command failed due to ICRC error
0x0003  2            0  R_ERR response for device-to-host data FIS
0x0004  2            0  R_ERR response for host-to-device data FIS
0x0006  2            0  R_ERR response for device-to-host non-data FIS
0x0007  2            0  R_ERR response for host-to-device non-data FIS

Lets do some analysis. First of all the (5,197,198) entries have not increased so no new bad sectors have been found

5 Reallocated_Sector_Ct PO--CK 100 100 010 - 32 ... 197 Current_Pending_Sector -O--C- 100 100 000 - 8 198 Offline_Uncorrectable ----C- 100 100 000 - 8

This next section tells us the LBA of the first error and how long the extended test had to run when it encountered it.

Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error # 1 Extended offline Completed: read failure 10% 17682 7760267536 # 2 Short offline Completed without error 00% 17665 -

The drive has a reported capacity of 7814037168 logical blocks (4000787030016 bytes reported total divided by 512 bytes reported logical block size). This means the fault is right at the "end" of the disk (99.31% scanned OK before getting the error). I'm inclined to draw a vague conclusion that the end of the disk is where tolerances are most critical as this is where the disk is spinning the fastest under the heads. (Happy to be corrected if this is not the case)

Either way the initial sage advice of "dont delay - get a new disk in sharpish" still holds and I am gratified to receive an email informing me that a brand new Seagate Ironwolf Pro 8TB will be arriving on Monday.

More updates on drive removal / replacement / resilver / scrub will follow in due course to assist and inform those that follow.

 

[danb35]

The extended test is showing a failed status

That's definitely grounds for replacing the drive.

 

[NASbox]

That's definitely grounds for replacing the drive.

I echo this.... I have found that if it fails it's own test and it's in warranty getting an RMA is no problem.

From what I can see the drive should have a 3 Year warranty, so if the Power On Hours is within a couple of months of when you bought the drive you should have warranty.

So, if you are still in warranty, just go to the seagate web site and file your RMA request.

You might want to consider putting in another drive till your RMA comes back.... depending on circumstances you are likely looking at 3 weeks + which is a long time for the pool to run with reduced redundancy.

 

[ingestre]

An update.

New purchased drive arrived on Sat so ....

• I offlined the failing, but still working drive (Storage, Pools, Cogwheel, Status, ThreeDots, Offline) and then removed it.
• I inserted the new drive and waited for it to be recognised - It didn't show up. Hmmmmm.
• Rebooted the machine and went into the BIOS - Still not showing up. Double Hmmmm!
• Reseated the new drive, but no matter what I tried it didn't show up. Realised I had a "DeadOnArrival" so said a few bad words and put the failing drive back in as an interim. Checked it showed up OK and brought it back online. Pool was healthy.
• I then spent some quality time on hold with the vendor to get the DoA replaced.

Second replacement arrived Monday and this time all went well.

• Offlined the old failing drive, pulled it and and inserted the new one. It showed up almost instantly (within about 30 secs)
• Initiated the replace process (Storage, Pools, Cogwheel, Status, ThreeDots, Replace, choose new drive)
• The resilver kicked off automagically and completed with no errors in about 8 hours. Pool is healthy.

Quick Tip for Extra credit : When replacing a drive, any SMART tasks for the old drive need to be edited so that they include the new drive going forward. If you dont do this, the new drive will not have regular SMART tests run on it (Risk!) . There are NO warnings or reminders about this as far as I can see, either in the GUI or in the documentation. (Possible amendment needed? Your comments would be welcomed)

 

[mistermanko]

An update.

New purchased drive arrived on Sat so ....

• I offlined the failing, but still working drive (Storage, Pools, Cogwheel, Status, ThreeDots, Offline) and then removed it.
• I inserted the new drive and waited for it to be recognised - It didn't show up. Hmmmmm.
• Rebooted the machine and went into the BIOS - Still not showing up. Double Hmmmm!
• Reseated the new drive, but no matter what I tried it didn't show up. Realised I had a "DeadOnArrival" so said a few bad words and put the failing drive back in as an interim. Checked it showed up OK and brought it back online. Pool was healthy.
• I then spent some quality time on hold with the vendor to get the DoA replaced.

Second replacement arrived Monday and this time all went well.

• Offlined the old failing drive, pulled it and and inserted the new one. It showed up almost instantly (within about 30 secs)
• Initiated the replace process (Storage, Pools, Cogwheel, Status, ThreeDots, Replace, choose new drive)
• The resilver kicked off automagically and completed with no errors in about 8 hours. Pool is healthy.

Quick Tip for Extra credit : When replacing a drive, any SMART tasks for the old drive need to be edited so that they include the new drive going forward. If you dont do this, the new drive will not have regular SMART tests run on it (Risk!) . There are NO warnings or reminders about this as far as I can see, either in the GUI or in the documentation. (Possible amendment needed? Your comments would be welcomed)

I believe if you've checked "all drives", to include all drives in scheduled SMART tests, one shouldn't worry about it.

 

[ingestre]

I believe if you've checked "all drives", to include all drives in scheduled SMART tests, one shouldn't worry about it.

You're right of course. Putting "All disks" in the SMART test should address this issue,

but......

I get twitchy about running tests concurrently across all disks on a working pool - especially the extended test which runs a full surface scan. For this purpose I had scheduled the SMART tests to run at separate times and had fallen foul them not running on replaced disks in the past