Since VM:Backup is their major user of tapes, this is what Graeme Moss has come up with:
1/ adding keyword report to all VMBACKUP job templates
1a/ add test to CHECKIT that VMBACKUP mdisk 1E1 is less than 80% full.
2/ add VMTAPE exit USERACNT which is called by the MOUNT command to write to user area of TMC a flag that this tape has to have byte field updated.
When RC report is to be generated
3/ if tape is flagged zero out byte count
4/ process all VMBACKUP keyword report files and update byte count and clear flag
5/ for tapes still flagged and CUSER is VMBACKUP write to alert report. (so we can add keyword report to template)
6/ for still flagged tapes including step 5 read tape and count bytes, update byte count and clear flag
7/ generate extract of TMC