DMS/OS—Indicate Generic Volume Names

The DMS/OS keyword indicates that volume names can be generic.
cafrdb2
The DMS/OS keyword indicates that volume names can be generic, and that
Fast Recover
should not check to see whether they are online.
Specify DMS/OS when your site uses a DASD management package that controls the data set placement on volumes.
This keyword has the following format:
DMS/OS
You must include the slash in the syntax.