I had a drive fail in my zpool.  The drive was still under warranty so it was sent back for replacement.  I put the new drive in and Unraid attempted a resilver and failed (locked up the server and all I could do is hard reboot).  Now, Unraid will start, but will not start the zfs pool.  When attempting to start, all I received is a pop-up with Wrong Pool State zfspool - invalid config (zfspool is the name of my pool).  Looking at syslog, it appears that zfs cannot find the replacement drive.

 

Nov 28 21:34:27 Tower emhttpd: import 37 cache device: no device

 

Dropping down to terminal, doing an initial zpool status check yields "no pools available".  If I import the pool and then run the status, I get

        NAME                        STATE     READ WRITE CKSUM
        zfspool                     DEGRADED     0     0     0
          raidz1-0                  DEGRADED     0     0     0
            sdc1                    ONLINE       0     0     0
            sdm1                    ONLINE       0     0     0
            sdb1                    ONLINE       0     0     0
            sde1                    ONLINE       0     0     0
            sdh1                    ONLINE       0     0     0
            sdd1                    ONLINE       0     0     0
            sdn1                    ONLINE       0     0     0
            replacing-7             DEGRADED     0     0    66
              17991041654255577759  UNAVAIL      0     0     0  was /dev/sdi1/old
              4345501486732808471   FAULTED      0     0     0  was /dev/sdi1
              sdi1                  ONLINE       0     0     0

 

I cannot remove the new drive from using the drop-down on the Main tab as that yields the same error as before.  Is this fixable?  If I've borked the pool, is there a way to temporarily access the data?  The data is backed up, but I think there is one directory that hasn't been backed up recently.  I've attached my diagnostics file.  Any help or directions you can point me in would be greatly appreciated.

 

tower-diagnostics-20231128-2147.zip

Is the resilver progressing? Post the full output of zpool status.

Here is the output of the import and status.

 

root@Tower:~# zpool import zfspool
root@Tower:~# zpool status -v
  pool: zfspool
 state: DEGRADED
status: One or more devices is currently being resilvered.  The pool will
        continue to function, possibly in a degraded state.
action: Wait for the resilver to complete.
  scan: resilver in progress since Tue Nov 28 21:26:51 2023
        687G scanned at 14.6G/s, 252M issued at 5.35M/s, 17.3T total
        0B resilvered, 0.00% done, no estimated completion time
config:

        NAME                        STATE     READ WRITE CKSUM
        zfspool                     DEGRADED     0     0     0
          raidz1-0                  DEGRADED     0     0     0
            sdc1                    ONLINE       0     0     0
            sdm1                    ONLINE       0     0     0
            sdb1                    ONLINE       0     0     0
            sde1                    ONLINE       0     0     0
            sdh1                    ONLINE       0     0     0
            sdd1                    ONLINE       0     0     0
            sdn1                    ONLINE       0     0     0
            replacing-7             DEGRADED     0     0     0
              17991041654255577759  UNAVAIL      0     0     0  was /dev/sdi1/old
              4345501486732808471   FAULTED      0     0     0  was /dev/sdi1
              sdi1                  ONLINE       0     0     0

errors: No known data errors

 

The resilver is not progressing, try rebooting, re-import the pool and post new status after 5 minutes.

 

 

I rebooted, imported the pool and the resilvering started.  After 8-hours or so later, the process completed with no errors.  Unfortunately, I'm still unable to start the array.  I'm still getting Wrong Pool State zfspool - invalid config when attempting to start the array.  Forcing the pool import and then status is listed below.  I am able to access the zfspool directly from the terminal and was able to back up the one folder I needed (hooray).

 

root@Tower:~# zpool status
  pool: zfspool
 state: ONLINE
  scan: resilvered 2.05T in 19:04:57 with 0 errors on Wed Nov 29 16:31:48 2023
config:

        NAME        STATE     READ WRITE CKSUM
        zfspool     ONLINE       0     0     0
          raidz1-0  ONLINE       0     0     0
            sdc1    ONLINE       0     0     0
            sdm1    ONLINE       0     0     0
            sdb1    ONLINE       0     0     0
            sde1    ONLINE       0     0     0
            sdh1    ONLINE       0     0     0
            sdd1    ONLINE       0     0     0
            sdn1    ONLINE       0     0     0
            sdi1    ONLINE       0     0     0

errors: No known data errors

 

Export the pool first (zpool export zfspool), then stop array, unassign all pool devices, start array, this will reset the pool config, stop array, re-assign all pool devices, start array, pool should now import, if it doesn't post new diags.

This corrected the issue.  Thank you very much for the help.

One thing I forgot to mention, make sure the pool devices are assigned in the same order as the zpool status output or there could be issues if you try replacing a device in the future, if they are not you can repeat the pool reset and re-import procedure as above.

Already done.  Screenshots are a wonderful thing.😄