I'm running a personal server at home with a CentOS 7 OS and a 12TB zpool. It's been running for a couple of years and yesterday I noticed some problems so I went in to have a look.
At first it seemed like one of my drives had failed, with
zpool import giving the following results:
pool: media id: 1363376331138686016 state: DEGRADED status: One or more devices contains corrupted data. action: The pool can be imported despite missing or damaged devices. The fault tolerance of the pool may be compromised if imported. see: http://zfsonlinux.org/msg/ZFS-8000-4J config: media DEGRADED raidz1-0 DEGRADED ata-ST3000DM001-1ER166_W500G55Q ONLINE ata-ST3000DM001-1CH166_Z1F278KB UNAVAIL sdc ONLINE sde ONLINE sdf ONLINE
This looks ok, however I can't seem to import the pool directly.
zpool import media gives me:
cannot import 'media': I/O error Destroy and re-create the pool from a backup source.
I've looked around to figure out the problem but everything I've found has given me nothing.
Some other things I've tried:
zpool import -fFX: zpool could not be imported
zpool import -fFV: zpool imported with FAULTED status
zpool status: no pools available
Is anyone able to point me in the right direction? I'm not sure what my next course of diagnosis should be.