How to create and backup a snapshot

You can use below procedure to create snapshot. In this example you create a snapshot of /data

1. Determine where you are going to store the backing store (the snapshot) file.
   For example you use /var/tmp as a location to store the backing-store file, and you will snapshot /data filesystem.
2. Create the snapshot.
   root@solaris-sunray # fssnap -F ufs -o backing-store=/var/tmp /data
3. Verify that snapshot is successful.
   root@solaris-sunray # fssnap -i
   0 /data
4. Mount the virtual device as you wish (optional)
   root@solaris-sunray # mount -F ufs -o ro /dev/fssnap/0 /mnt
   root@solaris-sunray # ls /mnt
5. Backup filesystem to tape
   root@solaris-sunray # ufsdump 0ucf /dev/rmt/0 /dev/fssnap/0