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 is tied 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 not contain 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 volumes and plexes can be destroyed.
