About restoring directly from a snapshot
If the option was turned on for the backup, the data can be restored from a mirror disk by restoring individual files from the snapshot, or by restoring the entire snapshot. This type of restore must be done from the command prompt. You can use a copy command such as UNIX cp.
Note the following:
This type of restore cannot be done from the NetBackup Administration Console.
This type of restore is not the Instant Recovery feature.