It is possible to have multiple snapshots of a VxFS filesystem active at once.
I’ve taken down the /data mirror on RAHU to use as two 20 GB snapshot storage volumes for standard VxFS snapshots. It takes a few minutes to create the snapshot. The snapshot command is a variant of the mount command:
mount -F vxfs -o snapof=/home/fc-raid-00-1 /dev/dsk/c1t0d0s7 /home/backup/snap1
I’m going to plan to have two snapshots active at all times. I’m not sure yet how to manage the mount points so that NetBackup is happy and we have decent links for the two from the users’ perspective.
Posted by Rowan Littell at April 1, 2004 03:18 PM