You can create multiple duplicate backup images concurrently either by using the NetBackup Catalog node or by configuring the Duplication tab of a Vault profile. Duplication is not always possible, so you must understand when you can use duplication in NetBackup.
Table: Possible circumstances for duplicating a Vault profile describes when duplication is and is not possible in NetBackup.
Table: Possible circumstances for duplicating a Vault profile
If you do multiplexed duplication, be aware of the following:
When duplicating multiplexed SQL-BackTrack backups with multiplex mode enabled, it is necessary to duplicate all of the backups in the multiplexed group. This ensures that the fragment order and size is maintained in the duplicate. Otherwise, it is possible that restores from the duplicated backups will not work. A multiplexed group is a set of backups that were multiplexed together during a single multiplexing session.
When duplicating multiplexed backups, the multiplex settings of the destination storage unit and the original schedule are ignored. However, if multiple multiplexed groups are duplicated, the grouping within each multiplexed group is maintained. This means that the duplicated groups has a multiplexing factor that is no greater than that used during the original backup.
If all backups in a multiplexed group are duplicated to a storage unit that has the same characteristics as the one where the original backup was created, the duplicated group is identical, with the following exceptions:
More Information
Creating concurrent copies through the catalog node