smartd[3370]: Device: /dev/ada1, 4 Currently unreadable (pending) sectors

[ykhodo]

Is it time to replace my drive? How can I correct this error?

Here is the smartctl output:

Code:

# smartctl -q noserial -a /dev/ada1
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:     Western Digital Green
Device Model:     WDC WD50EZRX-00MVLB1
Firmware Version: 80.00A80
User Capacity:    5,000,981,078,016 bytes [5.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5700 rpm
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2, ACS-3 T13/2161-D revision 3b
SATA Version is:  SATA 3.1, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Wed Aug  7 21:08:30 2019 EDT
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:      ( 121) The previous self-test completed having
                                        the read element of the test failed.
Total time to complete Offline
data collection:                (55080) 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:        (   2) minutes.
Extended self-test routine
recommended polling time:        ( 551) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x3035) SCT Status 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     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   210   196   021    Pre-fail  Always       -       8458
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       128
  5 Reallocated_Sector_Ct   0x0033   200   200   140    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x002e   200   200   000    Old_age   Always       -       0
  9 Power_On_Hours          0x0032   055   055   000    Old_age   Always       -       32909
 10 Spin_Retry_Count        0x0032   100   100   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   100   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       128
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       86
193 Load_Cycle_Count        0x0032   001   001   000    Old_age   Always       -       1116528
194 Temperature_Celsius     0x0022   118   112   000    Old_age   Always       -       34
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       4
198 Offline_Uncorrectable   0x0030   200   200   000    Old_age   Offline      -       4
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   200   200   000    Old_age   Offline      -       4

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: read failure       90%     32843         2433515558
# 2  Short offline       Completed: read failure       90%     32603         3164800184
# 3  Extended offline    Completed: read failure       10%     32515         3164800184
# 4  Short offline       Completed without error       00%     32435         -
# 5  Short offline       Completed without error       00%     32267         -
# 6  Extended offline    Completed without error       00%     32183         -
# 7  Short offline       Completed without error       00%     32099         -
# 8  Short offline       Completed without error       00%     31884         -
# 9  Extended offline    Completed without error       00%     31800         -
#10  Short offline       Completed without error       00%     31716         -
#11  Short offline       Completed without error       00%     31548         -
#12  Extended offline    Completed without error       00%     31464         -
#13  Short offline       Completed without error       00%     31380         -
#14  Short offline       Completed without error       00%     31141         -
#15  Extended offline    Completed without error       00%     31056         -
#16  Short offline       Completed without error       00%     30973         -
#17  Short offline       Completed without error       00%     30805         -
#18  Extended offline    Completed without error       00%     30721         -
#19  Short offline       Completed without error       00%     30638         -
#20  Short offline       Completed without error       00%     30422         -
#21  Extended offline    Completed without error       00%     30337         -

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.

and zpool status:

Code:

[root@hadrian ~]# zpool status
  pool: aventador
 state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
        still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
        the pool may no longer be accessible by software that does not support
        the features. See zpool-features(7) for details.
  scan: scrub repaired 0 in 0 days 00:01:47 with 0 errors on Fri Aug  2 04:01:53 2019
config:

        NAME                                              STATE     READ WRITE CKSUM
        aventador                                         ONLINE       0     0     0
          gptid/aaeac8c7-ffd6-11e7-8518-7085c250805c.eli  ONLINE       0     0     0

errors: No known data errors

  pool: cicero
 state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
        still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
        the pool may no longer be accessible by software that does not support
        the features. See zpool-features(7) for details.
  scan: scrub repaired 0 in 0 days 05:10:47 with 0 errors on Thu Aug  1 09:10:50 2019
config:

        NAME                                                STATE     READ WRITE CKSUM
        cicero                                              ONLINE       0     0     0
          raidz2-0                                          ONLINE       0     0     0
            gptid/d5d09b92-b46b-11e7-ae03-7085c250805c.eli  ONLINE       0     0     0
            gptid/d67a28b6-b46b-11e7-ae03-7085c250805c.eli  ONLINE       0     0     0
            gptid/d73c5c19-b46b-11e7-ae03-7085c250805c.eli  ONLINE       0     0     0
            gptid/d7fd0a56-b46b-11e7-ae03-7085c250805c.eli  ONLINE       0     0     0
            gptid/d8c2f01d-b46b-11e7-ae03-7085c250805c.eli  ONLINE       0     0     0
            gptid/d9873e17-b46b-11e7-ae03-7085c250805c.eli  ONLINE       0     0     0

errors: No known data errors

  pool: freenas-boot
 state: ONLINE
  scan: scrub repaired 0 in 0 days 00:01:28 with 0 errors on Sat Aug  3 03:46:28 2019
config:

        NAME        STATE     READ WRITE CKSUM
        freenas-boot  ONLINE       0     0     0
          ada0p2    ONLINE       0     0     0

errors: No known data errors

TIA

 

[Chris Moore]

How can I correct this error?

There isn't really any error to correct. This is looks to be mechanical. You could try removing it from the NAS and do a full wipe of the drive to see if the blocks re-allocate, but this is very likely just the start. The drive has over 32000 hours of run time. That is 3.7 years. It is between three and five years where most drives fail, if they survive the first six months. You should start planning to replace all your drives if they are around this age. A little over a year ago, I had to replace all my drives because they were over five years old and I was having a drive fail every month. The thing that finally made my mind up was when I had two go out on the same day.

 

[ykhodo]

There isn't really any error to correct. This is looks to be mechanical. You could try removing it from the NAS and do a full wipe of the drive to see if the blocks re-allocate, but this is very likely just the start. The drive has over 32000 hours of run time. That is 3.7 years. It is between three and five years where most drives fail, if they survive the first six months. You should start planning to replace all your drives if they are around this age. A little over a year ago, I had to replace all my drives because they were over five years old and I was having a drive fail every month. The thing that finally made my mind up was when I had two go out on the same day.

Thanks Chris. I have 5 other drives in the pool. 4/5 are 1.5 years old so I should be good there. Another drive have 4.5 (!) years of run time.

Should I just preemptively replace it as well? There are no errors for that drive afaict.

One other question - if I do replace the second drive too, should I do the replacement/re-silvering one drive at a time? I have never had to replace a drive before.

Thanks!

 

[Chris Moore]

Should I just preemptively replace it as well? There are no errors for that drive afaict.

I wouldn't say that, but you should be ready to do it. When my drives were all old, I was keeping two spares handy all the time.