Help interpreting SMART long test result

[Leafhopper]

I received a notification that one disk in my pool had some pending sector reallocations. Ran a long SMART self-test to dig in a bit.

Code:

smartctl -t long /dev/da17

I let it run overnight and checked back in the morning.

Code:

smartctl -a /dev/da17

Snipping out the results relevant (I think?) to the discussion

Code:

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: read failure       10%     21341         -
# 2  Short offline       Completed without error       00%      8475         -

I'm inclined to believe there's an error

Code:

Completed: read error

but there's nothing indicating the LBA of the error. Also, the snip of the report above indicates

Code:

 No Errors Logged

The question in my mind is: Well, so I have a failing drive or not? I'm inclined to distrust the drive, replace and resilver and get on with life.

Soliciting the wisdom of the group

 

[sretalla]

We appear to be missing the section that lists the LBA...

Post the entire output please.

 

[Leafhopper]

Sure.

Code:

root@Phoenix[~]# smartctl -a /dev/da17
smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.2-STABLE amd64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Skyhawk
Device Model:     ST4000VX007-2DT166
Serial Number:    ZDH1LREM
LU WWN Device Id: 5 000c50 0a2f0e1d4
Firmware Version: CV11
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:    Mon Sep 20 18:14:39 2021 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:      ( 113) The previous self-test completed having
                                        the read element of the test failed.
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:        ( 640) 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   083   064   044    Pre-fail  Always       -       201671512
  3 Spin_Up_Time            0x0003   093   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   098   098   020    Old_age   Always       -       2072
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   092   060   045    Pre-fail  Always       -       11680842856
  9 Power_On_Hours          0x0032   076   076   000    Old_age   Always       -       21365h+50m+21.850s
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       38
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   071   064   040    Old_age   Always       -       29 (Min/Max 28/32)
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       -       27
193 Load_Cycle_Count        0x0032   091   091   000    Old_age   Always       -       18141
194 Temperature_Celsius     0x0022   029   040   000    Old_age   Always       -       29 (0 18 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      -       15722h+21m+58.543s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       25840554372
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       29937740206

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: read failure       10%     21341         -
# 2  Short offline       Completed without error       00%      8475         -

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.

 

[sretalla]

197 Current_Pending_Sector 0x0012 100 100 000 Old_age Always - 8
198 Offline_Uncorrectable 0x0010 100 100 000 Old_age Offline - 8

Don't trust that disk... it's dying.

 

[Leafhopper]

Alright. Thanks!

 

[NugentS]

At the very least get a spare then swap the disk out. Then run badblocks on the disk or some other similar sort of test and see what the results are.

 

[Leafhopper]

Thanks. Will try that as well!