Although much information in the VMF is updated automatically, you may occasionally need to perform manual updates to this file. CA TLMS provides both batch and online commands which can be used to manually update the data set and volume information that is stored in the VMF.
You will use these commands to manually update only selective information in the VMF, for example, update cleaning information, add auxiliary messages, or change the current date format. Again, information about retention, movement and scratch status are updated automatically during realtime tape processing or when CATTRS is executed.
If you need to add or delete volume serial numbers from the VMF, you can use the same program (TLMSVMFU) that you used to initialize the VMF when CA TLMS was installed. You will also use this program to expand or decrease either the multi-data set/multivolume record area or the auxiliary message record area. Refer to "CATVMFI - Initialize the Volume Master File" in the Configuration Guide.
Online updates may be performed using the CATLTSO CLIST. The commands are the same as used with the batch program in the examples.
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