Back Up Data Using Global Deduplication

Global deduplication finds redundancies between C:\ drive backup sessions on different machines being backed up to the same deduplication device. Generally, the C:\ drive of a given machine holds operating system files, where high instances of redundancy are expected. In addition to system volumes, Global deduplication also handles Oracle RMAN sessions.

Global Deduplication happens every 6 hours but cannot happen while a backup or purge job is active, and will be interrupted if both jobs need to access the same session file.

To perform global deduplication, set up a backup job in the usual manner, ensure you have checked the Enable Global Deduplication option in Deduplication Device Group Configuration and you have select the C:\ drives of different machines specified as the backup source.

To back up data using global deduplication

1. From Deduplication Device Group Configuration, ensure the Enable Global Deduplication option is set (default setting is enabled).
2. From the Backup Manager, set up a backup job in the usual manner.
3. From the Source tab, select the Windows C:\ volume directories of different machines.
4. (Optional) If using staging, click the Staging Location tab and select a deduplication device group.
5. From the Destination tab, select a deduplication device group.
6. Complete the job setup selections as usual.
7. Run the job.