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13 Deploying Symantec Backup Exec 2014 with Dell PS Series Arrays | TR1057
Transportable (offhost) hardware-based VSS snapshots: The backup application requests that the storage
hardware create and store the snapshot of a backup client’s volume. Then, the backup server mounts the
snapshot and backs up the snapshot. This moves (offloads) backup processing from the backup client and
moves it to the backup server (offhost).
Transportable (offhost) snapshot operations typically work as shown in Figure 4.
Figure 4 VSS Transportable snapshot operations
1. The backup application requests that the storage hardware (PS Series group) create and store a
snapshot of the backup client volume.
2. The backup server mounts and backs up the snapshot.
3. The snapshot may be deleted after the backup is complete.