I have a machine that had some trouble with some bad RAM. After I diagnosed it and removed the offending stick of RAM, The ZFS pool in the machine was trying to access drives by using incorrect device names. I simply exported the pool and re-imported it to correct this. However I am now getting this error.
The pool Storage no longer automatically mounts
sqeaky@sqeaky-media-server:/$ sudo zpool status no pools available
A regular import says its corrupt
sqeaky@sqeaky-media-server:/$ sudo zpool import pool: Storage id: 13247750448079582452 state: UNAVAIL status: The pool is formatted using an older on-disk version. action: The pool cannot be imported due to damaged devices or data. config: Storage UNAVAIL insufficient replicas raidz1 UNAVAIL corrupted data 805066522130738790 ONLINE sdd3 ONLINE sda3 ONLINE sdc ONLINE
A specific import says the vdev configuration is invalid
sqeaky@sqeaky-media-server:/$ sudo zpool import Storage cannot import 'Storage': invalid vdev configuration
Cannot offline or detach the drive because the pool cannot be started/imported
sqeaky@sqeaky-media-server:/$ sudo zpool offline Storage 805066522130738790 cannot open 'Storage': no such pool sqeaky@sqeaky-media-server:/$ sudo zpool detach Storage 805066522130738790 cannot open 'Storage': no such pool
Cannot force the import
sqeaky@sqeaky-media-server:/$ sudo zpool import -f Storage cannot import 'Storage': invalid vdev configuration
I should have 4 devices in my ZFS pool:
I have no clue what 805066522130738790 is but I plan on investigating further. I am also trying to figure out how to use zdb to get more information about what the pool thinks is going on.
For reference This was setup this way, because at the time this machine/pool was setup it needed certain Linux features and booting from ZFS wasn't yet supported in Linux. The partitions sda1 and sdd1 are in a raid 1 for the operating system and sdd2 and sda2 are in a raid1 for the swap.
Any clue on how to recover this ZFS pool?
Edit - Status update I figured out what 805066522130738790 is. It is some guid that ZFS was failing to use to identify /dev/sdb. When physically I remove /dev/sdb the pool mounts and comes online. But I still cannot swap out the disks. I guess I will back up the files to external media, then blow away the whole pool because it is too corrupt to continue functioning. I should have just had good backups from the start...