Tried replacing a drive and I keep getting extra offline devices

[Beyonder]

I setup my freenas system 5 years with no real issues until 3 days ago.

Tried replacing a drive and I keep getting extra offline devices with my pool in degraded state.

The setup is laughable but worked.
ASrock 970 Extreme4
AMD sempron
16GB
16 HD in 8 vdevs Mirrored, boot from USB thumb drive-mirrored
Dell perc h200 controller flashed to LSI
intel network card
freenas 13.3-U1

 

[Battlebot32]

I ran into this exact issue 2 weeks ago. Turned out to be a failing Power Supply that I was using that was 10 years old. Every time I plugged in a new drive it would draw too much power from the failing PSU and would turn off one of the other drives. I replaced the PSU with a new one and that fixed the issue.

 

[Beyonder]

I have an extra power supply and will swap it out. How did you remove the offline drives and in my case the unavailable drive?

 

[Patrick M. Hausen]

zfs online followed by zfs scrub

Edit: that's zpool instead of zfs for both commands!

 

[Battlebot32]

Follow the instructions above for the offline drives and the unavailable drive should show back up normally after the PSU has been replaced.

 

[Beyonder]

Follow the instructions above for the offline drives and the unavailable drive should show back up normally after the PSU has been replaced.

I know enough to be dangerous and hope I do it correctly but would feel much safer if someone could walk me through it. In shell I type the

Code:

zfs online

but how do I determine the drive or pool?

 

[Patrick M. Hausen]

zpool status will tell you that. And I mistyped my last post. It is of course zpool online and zpool scrub. Sorry.

 

[Beyonder]

not a problrm with the typo
did zpool status and got the below.

what should I type for zpool online

Code:

root@freenas:~ # zpool status
  pool: bigdisk
 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: resilvered 1.17T in 0 days 04:58:28 with 7 errors on Mon Mar  9 19:01:40 2020
config:

        NAME                                              STATE     READ WRITE CKSUM
        bigdisk                                           DEGRADED     0     0   7
          mirror-0                                        ONLINE       0     0   0
            gptid/f30bb762-4c96-11e7-b8f8-bc5ff4d79176    ONLINE       0     0   0
            gptid/f684180c-4c96-11e7-b8f8-bc5ff4d79176    ONLINE       0     0   0
          mirror-1                                        ONLINE       0     0   0
            gptid/f948e850-4c96-11e7-b8f8-bc5ff4d79176    ONLINE       0     0   0
            gptid/fbfea3df-4c96-11e7-b8f8-bc5ff4d79176    ONLINE       0     0   0
          mirror-2                                        ONLINE       0     0   0
            gptid/49aede5a-5239-11e7-8c3d-bc5ff4d79176    ONLINE       0     0   0
            gptid/ef6740cd-5256-11e7-8c3d-bc5ff4d79176    ONLINE       0     0   0
          mirror-3                                        ONLINE       0     0   0
            gptid/a458941c-b0ed-11e9-acc5-bc5ff4d79176    ONLINE       0     0   0
            gptid/4a57e2a9-60c7-11ea-aa54-bc5ff4d79176    ONLINE       0     0   0
          mirror-4                                        ONLINE       0     0   0
            gptid/cedf1952-5433-11e7-b7ad-bc5ff4d79176    ONLINE       0     0   0
            gptid/864b4128-546a-11e7-b75a-bc5ff4d79176    ONLINE       0     0   0
          mirror-5                                        ONLINE       0     0   0
            gptid/87874f7d-546f-11e7-b75a-bc5ff4d79176    ONLINE       0     0   0
            gptid/2117844d-54a7-11e7-b75a-bc5ff4d79176    ONLINE       0     0   0
          mirror-6                                        ONLINE       0     0   0
            gptid/56137504-56a2-11e7-bba8-bc5ff4d79176    ONLINE       0     0   0
            gptid/d6e78e8e-56cb-11e7-bba8-bc5ff4d79176    ONLINE       0     0   0
          mirror-7                                        DEGRADED     0     0  14
            replacing-0                                   DEGRADED    14     0   0
              9441626568439762399                         OFFLINE      0     0   0  was /dev/gptid/94c4e440-5233-11e7-8c3d-bc5ff4d79176
              10357227814778871455                        OFFLINE      0     0   0  was /dev/gptid/8c989590-615b-11ea-8154-bc5ff4d79176
              301272103528604368                          UNAVAIL      0     0   0  was /dev/gptid/9e1b8cd8-621a-11ea-967f-bc5ff4d79176
              gptid/23199696-621e-11ea-967f-bc5ff4d79176  ONLINE       0     0  14
            gptid/96aafd82-5233-11e7-8c3d-bc5ff4d79176    ONLINE       0     0  14

errors: 7 data errors, use '-v' for a list

  pool: freenas-boot
 state: ONLINE
  scan: scrub repaired 0 in 0 days 00:05:21 with 0 errors on Sun Mar  8 03:50:21 2020
config:

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

 

[Patrick M. Hausen]

You changed the power supply? Looks like all your mirror disks are online, so a zpool status -v bigdisk. This should tell you which files are gone for good. You need to delete these and use zpool clear bigdisk to reset the errors. I don't know if that removes the bogus device entries, too. Better wait for another ZFS savvy person to confirm, though.

Patrick

 

[Beyonder]

Yes I changed the power supply. Many thanks I'll wait for confirmation from others before trying to correct the issue