SOLVED Help on pool degraded after 1 second power loss

[1kokies]

Hi guys i had a 1 second power trip, Freenas server i could not see it shutting down and restarting. However the pool is degraded. i have not re started it yet but i am not sure if it is a real issue or after i re booted it will be back to normal. 1 of the disk da7 have read and write errors, from GUI it is in 'faulted' state now.

And if i change disk, these are the steps from GUI ?

1. Plug in new disk without removing faulted disk which is da7
2. At da7>replace disk>replace it with new disk

or

1. Remove da7
2. Plug in new disk>replace

or

1. Offline da7 and remove physically
2. Insert new disk>replace

i really have phobia from last 2 weeks experience where pool cannot be seen.

Code:

root@freenas:~ # zpool status
  pool: Data-Media
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: resilvered 56K in 0 days 00:00:02 with 0 errors on Thu Oct 17 00:17:09 2                                                                                                                                                             019
config:

        NAME                                            STATE     READ WRITE CKS                                                                                                                                                             UM
        Data-Media                                      ONLINE       0     0                                                                                                                                                                  0
          raidz1-0                                      ONLINE       0     0                                                                                                                                                                  0
            gptid/151f2837-e61d-11e7-a41a-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/bb0c2d26-e5db-11e7-b7ed-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/b70cb8cd-e4de-11e7-b58d-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/b84b6866-e4de-11e7-b58d-086266295468  ONLINE       0     0                                                                                                                                                                  0

errors: No known data errors

  pool: Data-Storage
state: DEGRADED
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: http://illumos.org/msg/ZFS-8000-8A
  scan: scrub repaired 0 in 0 days 10:50:26 with 0 errors on Sun Jun  3 10:50:28                                                                                                                                                              2018
config:

        NAME                                            STATE     READ WRITE CKS                                                                                                                                                             UM
        Data-Storage                                    DEGRADED     0     0                                                                                                                                                                  0
          raidz2-0                                      DEGRADED     0     0                                                                                                                                                                  0
            gptid/13105a29-c624-11e7-bbe0-086266295468  FAULTED      7   113                                                                                                                                                                  0  too many errors
            gptid/1405e572-c624-11e7-bbe0-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/e3502be7-ec58-11e7-81f8-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/bfdede03-ed42-11e7-969f-086266295468  ONLINE       0     0                                                                                                                                                                  0
          raidz2-1                                      ONLINE       0     0                                                                                                                                                                  0
            gptid/367a9015-c625-11e7-bbe0-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/18a60acb-ecae-11e7-af1c-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/8cc6f7c5-ec2f-11e7-8da4-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/0544db8f-ece7-11e7-ad97-086266295468  ONLINE       0     0                                                                                                                                                                  0

errors: 1 data errors, use '-v' for a list

  pool: freenas-boot
state: ONLINE
  scan: scrub repaired 0 in 0 days 00:00:12 with 0 errors on Wed Oct 16 03:45:12                                                                                                                                                              2019
config:

 

[1kokies]

OK guys, the pool is Data-Storage & looking at the manual

1. Offline the disk da7 from GUI
2. Power down to remove da7, insert new disk
3. Power up and GUI & look for the Offline new disk to replace disk in pool Data-Storage.
4. Let it re silver, then pool becomes healthy again.
5. If above not right please let me know

Question : i am going to re boot first and see if pool is still degraded or do a scrub first before i re boot.(have not done a scrub for a year but i am not sure if it helps or will worsen the condition)

Appreciate opinions and experience please

 

[1kokies]

update: upon re boot server went back to normal healthy condition. (1 data error is due to the previous experience)

will update stability

Code:

root@freenas:~ # zpool status
  pool: Data-Media
 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: resilvered 56K in 0 days 00:00:02 with 0 errors on Thu Oct 17 00:17:09 2                                                                                                                                                             019
config:

        NAME                                            STATE     READ WRITE CKS                                                                                                                                                             UM
        Data-Media                                      ONLINE       0     0                                                                                                                                                                  0
          raidz1-0                                      ONLINE       0     0                                                                                                                                                                  0
            gptid/151f2837-e61d-11e7-a41a-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/bb0c2d26-e5db-11e7-b7ed-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/b70cb8cd-e4de-11e7-b58d-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/b84b6866-e4de-11e7-b58d-086266295468  ONLINE       0     0                                                                                                                                                                  0

errors: No known data errors

  pool: Data-Storage
 state: ONLINE
status: One or more devices has experienced an error resulting in data
        corruption.  Applications may be affected.
action: Restore the file in question if possible.  Otherwise restore the
        entire pool from backup.
   see: http://illumos.org/msg/ZFS-8000-8A
  scan: resilvered 1.43G in 0 days 00:02:14 with 0 errors on Thu Oct 24 06:39:25                                                                                                                                                              2019
config:

        NAME                                            STATE     READ WRITE CKS                                                                                                                                                             UM
        Data-Storage                                    ONLINE       0     0                                                                                                                                                                  0
          raidz2-0                                      ONLINE       0     0                                                                                                                                                                  0
            gptid/13105a29-c624-11e7-bbe0-086266295468  ONLINE       0     0                                                                                                                                                                 18
            gptid/1405e572-c624-11e7-bbe0-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/e3502be7-ec58-11e7-81f8-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/bfdede03-ed42-11e7-969f-086266295468  ONLINE       0     0                                                                                                                                                                  0
          raidz2-1                                      ONLINE       0     0                                                                                                                                                                  0
            gptid/367a9015-c625-11e7-bbe0-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/18a60acb-ecae-11e7-af1c-086266295468  ONLINE       0     0                                                                                                                                                                  0
            gptid/8cc6f7c5-ec2f-11e7-8da4-086266295468  ONLINE       0     0                                                                                                                                                                 38
            gptid/0544db8f-ece7-11e7-ad97-086266295468  ONLINE       0     0                                                                                                                                                                  0

errors: 1 data errors, use '-v' for a list

  pool: freenas-boot
 state: ONLINE
  scan: scrub repaired 0 in 0 days 00:00:16 with 0 errors on Thu Oct 24 03:45:16                                                                                                                                                              2019
config:

        NAME        STATE     READ WRITE CKSUM
        freenas-boot  ONLINE       0     0     0
          da8p2     ONLINE       0     0     0

errors: No known data errors
root@freenas:~ #

 

[blueether]

I would do a scrub on the data pool and a long SMART test, a reboot clears the error list.

 

[1kokies]

thanks for the advice, long smarts done

 

[PhiloEpisteme]

1. Plug in new disk without removing faulted disk which is da7
2. At da7>replace disk>replace it with new disk

Once you're ready to replace I'd do this route. Once the replacement is done if you have a hot-swap chassis you can just pull the old disk.

What are the temps like where your server is? What about humidity? Both will affect longevity of devices.

 

[1kokies]

Once you're ready to replace I'd do this route. Once the replacement is done if you have a hot-swap chassis you can just pull the old disk.

thanks Philo, the hot swaps does not seem to work, i tried and it always crashes.

if there is a disk faulted or spoiled, in future i'd do it this way from the manual

"Offline the disk da7 from GUI
2. Power down to remove da7, insert new disk
3. Power up and GUI & look for the Offline new disk to replace disk in pool Data-Storage.
4. Let it re silver, then pool becomes healthy again."

this is the right way ya ?

What are the temps like where your server is? What about humidity? Both will affect longevity of devices.

temp is about 40-50 degree C, humidity is about 80%

 

[PhiloEpisteme]

this is the right way ya ?

Looks right to me; I wouldn't argue with the User Guide on this one. :)

temp is about 40-50 degree C, humidity is about 80%

These ranges will cause premature drive failure at slightly higher rates. If possible try to get the humidity and temps down. Ideally temps below 40 but around 30 is better and humidity lower. This article suggests that humidity plays a bigger role than some folks originally thought.

 

[1kokies]

These ranges will cause premature drive failure at slightly higher rates. If possible try to get the humidity and temps down. Ideally temps below 40 but around 30 is better and humidity lower. This article suggests that humidity plays a bigger role than some folks originally thought.

yeah i know, that's why got those hdd bays with fans, hopefully after i put them back it will be cooler and i agree on the humidity.

Code:

=== START OF READ SMART DATA SECTION ===
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       -       105100346
  3 Spin_Up_Time            0x0003   094   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       276
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   088   060   045    Pre-fail  Always       -       690760174
  9 Power_On_Hours          0x0032   082   082   000    Old_age   Always       -       15779 (206 189 0)
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       277
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   097   000    Old_age   Always       -       8590065679
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   056   048   040    Old_age   Always       -       44 (Min/Max 37/48)
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       -       236
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       492
194 Temperature_Celsius     0x0022   044   052   000    Old_age   Always       -       44 (0 22 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      -       15760 (6 105 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       61864451162
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       31700950375

 

[1kokies]

yeah i know, that's why got those hdd bays with fans, hopefully after i put them back it will be cooler and i agree on the humidity.

after putting disks back into case where there are hdd bays (with small fans at rear), the temp drops to about 35 C. i guess the bays are working

Code:

root@freenas:~ # smartctl -A /dev/ada2
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 READ SMART DATA SECTION ===
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   077   064   044    Pre-fail  Always       -       53472624
  3 Spin_Up_Time            0x0003   094   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       244
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   088   060   045    Pre-fail  Always       -       675160082
  9 Power_On_Hours          0x0032   082   082   000    Old_age   Always       -       15781 (219 44 0)
10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       245
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   097   000    Old_age   Always       -       12885098508
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   065   041   040    Old_age   Always       -       35 (Min/Max 28/35)
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       -       194
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       439
194 Temperature_Celsius     0x0022   035   059   000    Old_age   Always       -       35 (0 22 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      -       15763 (84 219 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       61969770420
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       27426738862

root@freenas:~ # smartctl -A /dev/da7
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 READ SMART DATA SECTION ===
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       -       233321712
  3 Spin_Up_Time            0x0003   094   093   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       541
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   088   060   045    Pre-fail  Always       -       700356687
  9 Power_On_Hours          0x0032   081   081   000    Old_age   Always       -       17021 (118 156 0)
10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       545
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   098   000    Old_age   Always       -       11
189 High_Fly_Writes         0x003a   100   100   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   065   056   040    Old_age   Always       -       35 (Min/Max 28/36)
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       -       235
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       985
194 Temperature_Celsius     0x0022   035   044   000    Old_age   Always       -       35 (0 22 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      -       17014 (158 44 0)
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       66603959057
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       46586190109

root@freenas:~ #