I've got a six disk ZFS array which is showing as degraded. When I check the SMART screen, all drives are accounted for but sde is a 2TB drive that in an LVM volume rather than a 8TB drive in the array. All six of the 8TB drives are showing as available and passing SMART.
Any advice on how to readd the missing drive?
What was /dev/sde maybe not be /dev/sde now as disks can be re-lettered, for example between system boots. You should have had some kind of mail notification of a faulted drive which would simplify identifying the missing 8TB disk.
Otherwise, you can use the zpool history command to see which drives were used and hence what is missing, e.g. zpool history zpool01 | grep create and combine this with ls -l /dev/disk/by-id/* to id your disk in the pool.
I have to say that 6 x 8TB drives in raidz1 pool is risky. Using raidz2 is a far better/safer choice for these sized drives.
So you just want to know what zpool commands to use?
zpool remove is the wrong command. The zpool status message is telling you to use "zpool replace" ! Understand you proceed at your own risk, I'm not responsible for any data loss or other damages.
The steps are:
1. zpool offline the UNVAIL disk.
zpool offline zpool01 117xxxxxxxxxxxx <- sub full string here
2.Secure Wipe the dropped disk using the WebUI - Be doubly sure you've selected the correct one.
3. zpool replace the offlined disk with the disk you wiped.
zpool replace zpool01 117xxxxxxxxxxxx ata-WD-XXXXXXXXXXXXXXX <-- sub actual values
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