The VTOC that is written by CPFMTXA or ICKDSF CPVOL will stop MVS or VSE from writing anything on
the volume with normal commands. The VTOC has a free space record that shows no free space on the
volume. MVS can not allocate any new data sets on the volume. The VTOC has no DSN records. So MVS
cannot find anything to delete. Utilities that don't go through normal i/o (FDR, DITTO, ICKDSF, ...)
will be able to use the volume.
[EMAIL PROTECTED] wrote:
I'm about 99.9% certain that what CPFMTXA or ICKDSF CPVOL puts out is a
normal VOL1 label, along with an MVS recognizable VTOC.
Jim
Stracka, James (GTI) wrote:
We CPFMTXA every VM DASD volume that DASD Management gives us and we
return to them. We do not want any form of VTOC on those volumes and we
want one complete run of the entire DASD just in case there is an I/O
problem with the packs, unlikley today, but in days of old....
--
Stephen Frazier
Information Technology Unit
Oklahoma Department of Corrections
3400 Martin Luther King
Oklahoma City, Ok, 73111-4298
Tel.: (405) 425-2549
Fax: (405) 425-2554
Pager: (405) 690-1828
email: stevef%doc.state.ok.us
