When troubleshooting a double disk failure with SyncMirror, you decide to remove and destroy a
plex from a mirrored aggregate. What steps remove a plex from a mirrored aggregate?

A.
Take the aggregate offline and use the aggr destroy command

B.
Take the aggregate offline and use the destroy -f command

C.
Ensure the plex is online and use the aggr destroy plexname command.

D.
Ensure the plex is offline and use the aggr destroy plexname command.

Explanation:
https://library.netapp.com/ecmdocs/ECMP1196890/html/man1/na_aggr.1.html
aggr destroy { aggrname | plexname } [ -f ]
Destroys the aggregate named aggrname, or the plex named plexname. Note that if the specified
aggregate istied to a traditional volume, then the traditional volume itself is destroyed as well.
If an aggregate is specified, all plexes in the aggregate are destroyed. The named aggregate must
also notcontain any flexible volumes, regardless of their mount state (online, restricted, or offline).
If a plex is specified,the plex is destroyed, leaving an unmirrored aggregate or traditional volume
containing the remaining plex.
Before destroying the aggregate, traditional volume or plex, the user is prompted to confirm the
operation. The-f flag can be used to destroy an aggregate, traditional volume or plex without
prompting the user.
The disks originally in the destroyed object become spare disks. Only offline aggregates,
traditional volumesand plexes can be destroyed.