Appendix A, Media Manager Reference Topics
How NetBackup Selects Media in Standalone Drives
307
Previously unused media is used by NetBackup. If the media is unlabeled, the following
actions occur:
1.
NetBackup labels the media.
2.
Media Manager adds a media ID to the volume configuration, if necessary. If a media
ID is added, the NetBackup media ID prefix is used as the first characters of the media
ID.
3.
If a media ID prefix is not specified, the default prefix is the letter A. For example,
A00000.
4.
Media Manager adds the requested volume pool to the volume configuration (if the
backup policy specifies a volume pool).
If the unused media is unlabeled, you can label it by using the
bplabel
command. When
using this command, you can specify the
-u
parameter in order to force assignment of a
specific drive index. This eliminates the need to manually assign the drive.
Disabling Standalone Drive Extensions
You can disable the standalone drive extensions by clearing the NetBackup Media host
property check box, Enable Standalone Drive Extensions, for the server. Clearing this
property causes NetBackup to use the same method to select media for standalone drives
as it uses for robotic drives.
Spanning Media
Media selection following an end of media condition is a special case and depends on
whether NetBackup is configured to allow backups to span media, as follows:
◆
NetBackup spans media if the Media host property, Allow Backups to Span Media, is
specified for the server. In this case, NetBackup selects another volume to begin the
next fragment and the resulting backup has data fragments on more than one volume.
a.
Following an end of media condition, NetBackup first attempts to use an
unassigned volume rather than one that already has images on it, and requests
Media Manager to assign one. Media Manager checks its volume database for a
volume that is the correct media type, in the correct volume pool, and so on.
b.
If Media Manager cannot find a suitable volume, NetBackup selects one from its
media catalog.
c.
In either case, the Device Monitor displays the mount request and an operator
must manually insert the volume and assign it to the drive.
Summary of Contents for NetBackupTM 5.0
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