change RaidZ3 to RaidZ2

[markgca]

i have a truenas server with 14 drives, 7 each in 2 vdevs. i was originally going to use it for all storage, but ended up backing up the one vdev to the other.

because of the original intent, i set each vdev up as a raidz3. i now want more space on the backup vdev, so want to downgrade it from raidz3 to raidz2

i assume i have to blow the partition away and recreate it, and thats ok since its just backups anyway.

but questions:
is there an easier way?
if i do that, will all the tasks (rsync, sapshots, etc) still work on the new partition? i assume not, but....
anything else i should know before i do this?

thanks for any guidance.

 

[NugentS]

You could just remove a disk and run a degraded Z3 which is sort of a Z2 [Not a good idea]
But I guess you want the extra space - so your only option is to destroy the pool and re-create

 

[markgca]

thats what i thought...

any chance the tasks/rsync/snapshot schedules will still work? or any way to preserve them?

 

[Patrick M. Hausen]

any chance the tasks/rsync/snapshot schedules will still work? or any way to preserve them?

They are independent of the pool. Not the snapshots proper, but the tasks and schedules that created them. So as long as you name your new pool the same as the old one, they should continue to work as before. Starting fresh, of course.