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to track the number of volumes you have used. You can use the preconfigured pools
and preconfigured (and associated) label templates that come with the Backup
product, or create your own pools, label templates, and pool/template associations.
Customizing your own label templates gives you more control over your data
storage organization.
When you put a new internal label on a volume or relabel a volume to recycle, any
existing data stored on the volume under the previous label is no longer available
for recovery.
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When a scheduled or manual backup occurs, Backup searches for a volume from the
appropriate pool to accept the data that needs to be written. The storage volumes
available for Backup to use are the volumes that are mounted on standalone devices
and the volumes accessible to Backup through auto media management or available
to Backup through an autochanger or silo.
If you try to back up files when an appropriate volume is not mounted, Backup
requests a writable volume by displaying a message similar to the following in the
Pending display:
media waiting: backup to pool 'Default' waiting for 1 writable
backup tape or disk
When you start a data recovery, Backup displays a message in the Pending display
that requests a mount of the volume name that contains the backed-up data, as in:
media waiting: recover waiting for 8mm 5GB volume-name
If you need more than one volume to recover the files, the Pending display lists all
of the volumes in the order they are needed. During the recovery process, Backup
requests the volumes it needs, one at a time.
If you mount more than one volume on the storage devices used by Backup, Backup
uses the following hierarchy to select a volume on which to write data:
*An already mounted, appendable volume from the appropriate pool
*An already mounted, recyclable volume from the appropriate pool that is not
currently in use
*An already mounted, unlabeled volume that is not currently in use and is in a
device for which auto media management is enabled
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