Example -- Using a Mirror to Make an Online Backup

This example uses a mirror named d1, consisting of submirrors d2 and d3. d3 is taken offline and backed up while d2 stays online. The file system on the mirror is /home1.

# /usr/sbin/lockfs -w /home1
# metaoffline d1 d3
d1: submirror d3 is offlined
# /usr/sbin/lockfs -u /home1
(Perform backup using /dev/md/rdsk/d3)
# metaonline d1 d3
d1: submirror d3 is onlined