VMF Keywords

The UPD and UPV commands let you manually change values in the Volume Master File. The table lists the values you can change and gives the keyword you must specify to change the value. Characters can be either alphabetic or numeric, unless otherwise noted.

To delete a value, code the keyword followed by a blank or comma, for example CTIME=, or CDATE= . You cannot delete DEN or LABEL.
If the value contains an embedded blank or comma, it must be enclosed in single quotes.

More information

Volume Master File Inquiry and Update