DSM/Tape Catalog User's Guide

DSM/TC Tape Processing
DSM/Tape Catalog User’s Guide — 520233-008
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Copying a Volume Set Created by the BACKUP
Utility

When converting your site to DSM/TC, you need to catalog a backup volume set
that was created before DSM/TC was in use, but not its disk files:
MC> ADD TAPEFILE OPR_MONDAY_BACKUP,&
>>> MODE BACKFILE,&
>>> EXPIRATION OCT 15 1993