SnapManager gives you the options of volume-wide backup, multiple-volume backup, and partial backup at the volume level.
- Volume-wide backup
- Use this option when a set of Storage Groups spans a single volume. When you make a Snapshot copy of a LUN, SnapManager captures the entire volume in that Snapshot copy. However, the Snapshot copy is valid only for your current server. If data from other servers resides on the same volume, you cannot restore their data by using the Snapshot copy of your current server.
- Multiple-volume backup
- Use this option when a set of Storage Groups spans multiple volumes. All LUNs that belong to a single server are backed up in simultaneously across all volumes. The resulting backup set contains multiple Snapshot copies, but you can restore it as a single entity.
- Partial backup
- If any backup in a Storage Group set fails, you can restore other backups in the set that are backed up successfully. Each database has its own backup and hence you can restore it individually.
