HP B6960-96035 - Manual (Page 118)

Figure 33 Demultiplexing a medium
Consolidating a restore chain
You can copy a restore chain (all backups that are necessary for a restore) of an
object version to a new media set. A restore from such a media set is faster and more
convenient, as there is no need to load several media and seek for the needed object
versions.
Migration to another media type
You can migrate backed up data to another media type. For example, you can copy
objects from file devices to LTO devices or from DLT devices to LTO devices.
Disk staging
The concept of disk staging is based on backing up data in several stages to improve
the performance of backups and restores, reduce costs of storing the backed up data,
and increase the data availability and accessibility for restore.
The backup stages consist of backing up data to media of one type and later moving
the data to media of a different type. The data is backed up to media with high
performance and accessibility, but limited capacity (for example, system disks). These
backups are usually kept accessible for restore for a period of time when a restore
is the most probable. After a certain period of time, the data is moved to media with
lower performance and accessibility, but high capacity for storage, using the object
copy functionality. See
Figure 34 on page 119.
Planning your backup strategy 118