Copying retention sets to tape storage
You can protect data in a retention set by copying the data to tape storage.
Before you begin
About this task
To store retention sets on tape, you must define a retention storage pool. The retention storage pool represents 3592 tape devices, LTO tape devices, or StorageTek drives, and can be used only for retention set data.
A retention storage pool contains retention set data only. You cannot move data between retention pools and non-retention storage pools, which helps to ensure that retained data is not mixed with data that might be required for operational recovery.
When a retention set is created from a retention rule, the retention set is initially created in-place in primary storage. With in-place retention, data objects that are backed up in retention sets are retained in primary storage and tracked in the server inventory. With retention to tape, retention sets are initially created as in-place retention sets, but can be copied to tape for offline storage.
The operation to copy the retention set to tape is controlled by storage rules. A storage rule to copy the retention set to tape is created automatically when you specify a retention storage pool as the destination for the data when you define the retention rule. This storage rule runs once each day to copy retained data from primary storage to the retention storage pool. If the retention set is not fully copied to tape during the processing window, copying is resumed the next time the retention-copy storage rule runs.