With a policy configured with the Retain snapshots for instant recovery
attribute, you can do either of the following:
Create the backup image on disk only.
Create the backup image on disk and have it copied
to a storage unit.
Snapshots and copy snapshots to a storage
unit
NetBackup creates and retains a snapshot and backs up the
client's data to the storage unit that is specified for the
policy.
Snapshots only
The snapshot is not backed up to tape or to other storage.
NetBackup creates a snapshot on disk only. This option is required
for the NAS_Snapshot method.
Note:
The snapshot is created on the same device
as the one that contains the original data if it uses VxFS_Checkpoint method or is vxvm space-optimized. In this case, you may
want to create another policy to back up the data to a separate
device.