You might remove a plex from a mirrored aggregate, if there is a problem with that plex.
Considerations
If you have a double-disk failure that causes a plex to fail, you can remove the plex from the mirrored aggregate, fix the problem, and then re-create it. You can also re-create it using a different set of disks, if the problem cannot be fixed.
You might also remove a plex from a mirrored aggregate if you want to stop mirroring the aggregate.
Steps
- Take offline all of the plexes you decided to take offline by entering the following command:aggr offline plex-name
plex-name is the name of one of the mirrored plexes.
Note: Only one plex at a time can be taken offline.
- Destroy the plex you took offline by entering the following command:aggr destroy plex-name
Removing and destroying a plex from a mirrored aggregate results in an unmirrored aggregate, because the aggregate now has only one plex.
After removing the plex, Data ONTAP converts the good disks used by the plex into hot spare disks.
