HP B6960-90078 manual Selecting a Backup Type Full or Incremental, Backup Types

Backup

Selecting a Backup Type: Full or Incremental

Selecting a Backup Type: Full or Incremental

To save time and media during a backup, you can combine full and incremental backups. For example, you can create a second-level incremental backup based on a previous first-level incremental backup, a third-level incremental backup based on a previous second-level incremental backup, and so on.

The backup type (full or incremental) applies to the entire backup specification and only to filesystem objects.

The backup type is ignored for zero downtime backup sessions (split mirror or snapshot backup). It is set to full.

To combine full and incremental backups, make sure that the backup object has exactly the same:

	•	client name
	•	drive/mountpoint
	•	description
		The description can be set for the whole backup specification or for a
		specific object. Refer to “Backup Specification Options” on page 236
		and “Object Options” on page 239.
	•	owner
		Backup ownership can be set for the whole backup specification.
		Refer to “Ownership: Who Will Be Able to Restore?” on page 235.
Backup Types	•	Full backup
		A full backup consists of all backup objects, even if they have been
		backed up before. The first backup of an object is always a full
		backup. Any subsequent backup will be completed as full if no
		protected full backups with the same ownership are available at the
		backup time.
	•	Incr backup
		This backup type is based on any previous, still protected backup
		chain, either a full or an incremental backup. An incremental backup
		includes only the files that have changed since the last still protected

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