Full backup

Incremental backup

Restore

Enables simple and quick restore.

A restore takes more time because

 

 

of the number of media needed.

IDB impact

Occupies more space in the IDB.

Occupies less space in the IDB.

Data Protector can also make incremental backups of online database applications. These vary from application to application. On Sybase, for instance, this type of backup is referred to as a transaction backup (a backup of transaction logs modified since the last backup).

Note that the incremental backup concept is not related to the log level concept, which defines the amount of information written to the IDB.

NOTE:

A number of additional backup types (such as direct backup, split mirror backup, snapshot backup, and data mover backup) are available with Data Protector application integrations. For more information, see the respective HP Data Protector integration guides for more information.

Full backups

Full backups always back up all selected objects, even if there are no changes since the previous backup.

Synthetic backup

Synthetic backup is an advanced backup solution that eliminates the need to run regular full backups. Instead, incremental backups are run, and subsequently merged with the full backup into a new, synthetic full backup. For more information, see Chapter 11 on page 257.

Incremental backups

Incremental backups back up changes from a previous still protected (full or incremental) backup. A full backup of an object (with identical client name, mount point, and description) must exist before an incremental backup of this object is possible.

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Planning your backup strategy

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HP B6960-96035 manual Full backups, Incremental backups, Synthetic backup, Full backup Incremental backup