Legato Networker ClientPak for MPE/iX Users Guide

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Chapter 3: Recovering Files
This chapter describes how to recover entire directories, individual files,
groups of files, or MPE volume sets. It also describes how to browse the
NetWorker save sets for available recovery files, view the backup history of
files, or recover files with an earlier backup dates. Finally, it describes how to
recover and relocate a file into a different client directory.
The NetWorker NSRRECOV Program
The NetWorker NSRRECOV program replaces lost or damaged files from a
copy stored on a NetWorker backup volume. NetWorker backs up files to
media. It creates an entry for the files in an online file index. NetWorker uses
this index to map the backed-up files to backup volumes.
Recovery operations are the highest priority operations in NetWorker. For
example, if an autochanger inventory is occurring at the same time that a client
starts a recovery, and a tape affected by the inventory is needed for recovery,
the inventory is suspended until the recovery is completed.
When you back up files, NetWorker saves the files as a save set that you can browse
if you need to recover a file, a directory, or a volume set. Each time that you back up
files, NetWorker saves a new backup version of the files. If more than one version
of backed-up files exist, then by default NetWorker recovers the files with the
most recent backup dates.
When you start the NSRRECOV program from a directory that has been backed
up, NetWorker searches the saved file index for the save set that corresponds with
the current client directory.