HP B6960-90078 - Manual (Page 260)

Backup
Using Backup Options
Chapter 5 230
Figure 5-29 Backup Object Properties - Options: Protection
Catalog Protection: How Long Info Is Kept in the Database
Besides the Protection option, which controls how long data is
protected on media, you can set the Catalog Protection option, which
controls the time for which information about backed up files and
directories is kept in IDB. Catalog protection and data protection can be
set independently. Catalog protection has no effect if the log level is
Log
None .
The default value for catalog protection is Same as data protection .
This means that you can browse and select files or directories as long as
the media are available for restore.
NOTE If data protection expires, the catalog protection is cancelled. That is,
when the data protection ends and a medium is overwritten, the catalogs
for the objects are removed regardless of the catalog protection.