A block-level synthetic full backup is a synthesized backup that is created from the most recent block-level full backup and the subsequent log only backups. A synthetic full backup does not transfer data from a client computer to the backup media. Therefore, it does not use any resources on the client computer.
Best practice: Run a log only backup either before or after a synthetic full backup.
- When you run a log only backup before a synthetic full backup, any new or recently changed data is included in the synthetic full backup.
- When you run a log only backup after a synthetic full backup, any new or recently changed data that was not included in the synthetic full is included in a log-only backup.
Before You Begin
Verify that you have at least two media drives associated with the storage policy of the subclient that you configured for performing a block-level backup. You need at least two media drives, because synthetic full backups read (back up) and write (restore) simultaneously on two media drives.
- From the CommCell Browser, expand Client Computers > Client > PostgreSQL > Instance > FSBasedBackupSet.
- Right-click the subclient that you configured for performing a block-level backup, and then click Backup.
The Backup Options dialog box is displayed.
- Select Synthetic Full as the backup type.
- In the Job Initiation section, specify whether you want to run the backup job immediately or to schedule it.
- Click OK.
The Job Controller displays the synthetic full backup job as Synthetic Full.
You can view detailed information about a backup job, such as the objects that were backed up or the backup option that was used. For more information, see Viewing the Details of a Block-Level Backup Job.