User Exit Reference › USREXIT1 User Exit › Return Codes

Return Codes

The exit sets the return code in Register 15 (R15) before returning control to CA VM:Tape. The return code must be one of those listed below.

0

Accept the foreign mount and continue processing the mount

4

Force the mount to be read/only

8

Cancel the mount request. In this case, CA VM:Tape will send the user message VMT051T indicating that the mount was canceled by USREXIT1