Should I be worried about this disk?

ninjai

Explorer
Joined
Apr 6, 2015
Messages
98
I just got an email alert last night that my pool was degraded. I logged in and says the same thing. When I look in the web GUI I see that /dev/ada0 is missing. I rebooted and the pool now shows online and healthy.

here's a listing of the zpool, it shows that a resilver occurred:
Code:
[root@freenas /nonexistent]# zpool list
NAME           SIZE  ALLOC   FREE  CKPOINT  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT
Storage       16.2T  12.8T  3.44T        -         -    26%    78%  1.00x  ONLINE  /mnt
freenas-boot  14.6G  6.57G  8.06G        -         -      -    44%  1.00x  ONLINE  -
[root@freenas /nonexistent]# zpool status
  pool: Storage
 state: ONLINE
status: One or more devices has experienced an unrecoverable error.  An
        attempt was made to correct the error.  Applications are unaffected.
action: Determine if the device needs to be replaced, and clear the errors
        using 'zpool clear' or replace the device with 'zpool replace'.
   see: http://illumos.org/msg/ZFS-8000-9P
  scan: resilvered 18.8M in 0 days 00:00:06 with 0 errors on Mon Apr 22 15:19:13 2019
config:

        NAME                                            STATE     READ WRITE CKSUM
        Storage                                         ONLINE       0     0     0
          raidz2-0                                      ONLINE       0     0     0
            gptid/e6a9bbc1-09a1-11e5-82eb-00259047a3c7  ONLINE       0     0    22
            gptid/e7032886-09a1-11e5-82eb-00259047a3c7  ONLINE       0     0     0
            gptid/e75f6d63-09a1-11e5-82eb-00259047a3c7  ONLINE       0     0     0
            gptid/e7bdd31f-09a1-11e5-82eb-00259047a3c7  ONLINE       0     0     0
            gptid/e81d2a0e-09a1-11e5-82eb-00259047a3c7  ONLINE       0     0     0
            gptid/e87c9fc7-09a1-11e5-82eb-00259047a3c7  ONLINE       0     0     0

errors: No known data errors

  pool: freenas-boot
 state: ONLINE
  scan: scrub repaired 0 in 0 days 01:56:51 with 0 errors on Sun Apr 21 05:41:51 2019
config:

        NAME        STATE     READ WRITE CKSUM
        freenas-boot  ONLINE       0     0     0
          da1p2     ONLINE       0     0     0

errors: No known data errors
[root@freenas /nonexistent]#



and here's a smart printout:

Code:
[root@freenas /nonexistent]# smartctl -a /dev/ada0
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 Red
Device Model:     WDC WD30EFRX-68EUZN0
Serial Number:    WD-WCC4N7TS8PJE
LU WWN Device Id: 5 0014ee 2611e1f05
Firmware Version: 82.00A82
User Capacity:    3,000,592,982,016 bytes [3.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5400 rpm
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 (minor revision not indicated)
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Apr 22 15:26:33 2019 PDT
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:  (0x00) Offline data collection activity
                                        was never started.
                                        Auto Offline Data Collection: Disabled.
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:                (40080) 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:        ( 402) minutes.
Conveyance self-test routine
recommended polling time:        (   5) minutes.
SCT capabilities:              (0x703d) SCT Status supported.
                                        SCT Error Recovery Control supported.
                                        SCT Feature Control supported.
                                        SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x002f   200   200   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0027   194   177   021    Pre-fail  Always       -       5258
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       43
  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   054   054   000    Old_age   Always       -       33693
 10 Spin_Retry_Count        0x0032   100   253   000    Old_age   Always       -       0
 11 Calibration_Retry_Count 0x0032   100   253   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       42
192 Power-Off_Retract_Count 0x0032   200   200   000    Old_age   Always       -       17
193 Load_Cycle_Count        0x0032   200   200   000    Old_age   Always       -       682
194 Temperature_Celsius     0x0022   122   109   000    Old_age   Always       -       28
196 Reallocated_Event_Count 0x0032   200   200   000    Old_age   Always       -       0
197 Current_Pending_Sector  0x0032   200   200   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   100   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x0032   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x0008   100   253   000    Old_age   Offline      -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
Num  Test_Description    Status                  Remaining  LifeTime(hours)  LBA_of_first_error
# 1  Short offline       Completed without error       00%     31945         -
# 2  Short offline       Completed without error       00%     31934         -
# 3  Short offline       Completed without error       00%     31788         -
# 4  Short offline       Completed without error       00%     31777         -
# 5  Short offline       Completed without error       00%     31766         -
# 6  Short offline       Completed without error       00%     31621         -
# 7  Short offline       Completed without error       00%     31610         -
# 8  Short offline       Completed without error       00%     31599         -
# 9  Short offline       Completed without error       00%     31453         -
#10  Short offline       Completed without error       00%     31442         -
#11  Short offline       Completed without error       00%     31431         -
#12  Short offline       Completed without error       00%     31286         -
#13  Short offline       Completed without error       00%     31275         -
#14  Short offline       Completed without error       00%     31264         -
#15  Short offline       Completed without error       00%     31118         -
#16  Short offline       Completed without error       00%     31107         -
#17  Short offline       Completed without error       00%     31096         -
#18  Short offline       Completed without error       00%     30950         -
#19  Short offline       Completed without error       00%     30939         -
#20  Short offline       Completed without error       00%     30928         -
#21  Short offline       Completed without error       00%     30782         -

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.

[root@freenas /nonexistent]#


Should I be heading out to replace this disk?
 

Chris Moore

Hall of Famer
Joined
May 2, 2015
Messages
10,080
You need to run some long self test every now and then all you have there are short tests.
Run a long test and then look at these results again
 
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