Legato Networker ClientPak and Storage Node User's Guide

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About Legato NetWorker for MPE/iX
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Archiving involves long-term storage of data on media called archive volumes. Archive
volumes are similar to backup volumes, but are stored for long periods of time and are
not automatically recycled. They are also not browsable if you want to recover them.
To conserve space, you can groom files from your system after archiving. Mission-
critical data remains safely preserved for as long as you need it.
The optional Legato NetWorker Archive Application provides the ability to take a
snapshot of finished project files, directories, or MPE volume sets residing on primary
media. To conserve media space, you can choose to have archived data automatically
removed from the media after NetWorker verifies that the snapshot is safely stored on
removable media.
Unlike backed-up data, the media used for storing archived data is never recycled.
Archived data is preserved for as long as you need it. Archiving data associated with
a finished project frees up space for current projects, while assuring future access to
mission-critical data.
To use the Archive Application, your system administrator simply enables the
software on the NetWorker server. No additional installation procedures are required.
MPE Volume Set Support
Legato NetWorker for MPE/iX, Release 5.5 provides MPE volume set support.
“Volume set” is an MPE/iX term used to denote one or more MPE volumes that are
logically grouped together for some system or business reason. For example, all the
disks that are used by the accounting department can be put in an exclusive volume
set.
As with other non-volume set saves, such as files and directories, the system
administrator can configure the NetWorker server for your HP 3000 MPE client to
perform server-initiated backups. Refer to the Legato NetWorker Installation Guide,
MPE/iX Version, Release 5.5 for information on how to configure the MPE client on a
NetWorker server.
You can also perform client-initiated backups and recovers of the MPE volumes sets.
The procedure is similar to performing client-initiated backups and recovers of files
and directories. The only difference is that you need to append a special
_VOLUME_SET tag to the names of nonsystem volume sets and explicitly reference
the directory accounting information file (DAF) of a volume set by appending another
special _VOLUME_SET_DAF tag. See “Chapter 2: Backing Up Files” on page 13 and
“Chapter 3: Recovering Files” on page 23 for information on backing up and
recovering data.
If you have system administrator permissions, you can also archive MPE volume sets.
Although you can groom volume sets, be warned that you cannot remove the directory
information pseudo files. You should never groom the system volume set. See
“Chapter 4: Archiving and Retrieving Files” on page 45 for information on archiving.
Only system administrators should back up, recover, or archive volume sets. The
primary purpose of the MPE volume set function is for backing up entire MPE volume
sets as part of a disaster recovery plan. Should a disaster occur, you can recover the
NetWorker save sets for the MPE volume sets and restore them.