I didn't set up the mdisk. I just wanted to make sure there was no valid reason for having a disk pack without an unreadable vtoc.
David Logan Manager of Product Development, Pitney Bowes Business Insight http://centrus.com W: (720) 564-3056 C: (303) 818-8222 -----Original Message----- From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf Of Edward M Martin Sent: Monday, January 26, 2009 08:18 To: [email protected] Subject: Re: DASD VOL1 doc Hello Tony, You know he said he had the vtoc at x'0d3d' for 1 which is 3389. maybe (since he fairly new or been out of it) the Mdisk statement is just code wrong. Ed Martin Aultman Health Foundation 330-588-4723 ext 40441 -----Original Message----- From: The IBM z/VM Operating System [mailto:[email protected]] On Behalf Of Tony Thigpen Sent: Monday, January 26, 2009 7:52 AM To: [email protected] Subject: Re: DASD VOL1 doc On a CPVOL, what is stored in the VTOC address field +x'0B'? The question started on VSE-L due to a "what's on this volume" question. The ownerid is CP370. The VTOC address field is there but is past the end of the volume. DITTO/ESA for VSE DVT - Display VTOC Unit 0400 VOLSER DOSRES 3390 with 3339 cyls, 15 trks/cyl, 58786 bytes/trk // EXEC LVTOC 1S54I PHASE LVTOC IS TO BE FETCHED FROM IJSYSRS.SYSLIB LABEL IDENT - VOL1 VTOC START IS CYLINDER - 3389 SERIAL NUMBER- STC25A OWNER IDENT - CP370 Tony Thigpen -----Original Message ----- From: Alan Altmark Sent: 01/26/2009 12:50 AM > On Saturday, 01/24/2009 at 08:10 EST, Tony Thigpen <[email protected]> > wrote: >> Anybody know where in the VM manuals the layout of the VOL1 label is >> documented? > > If you want a modern VOL1, see > - DFSMS: Using Datasets for the VOL1 > - DFSMSafp Advanced Services for the VTOC and DSCBs > > If you actually want a CPVOL, it has a form that predates the modern > standard and is not found in any z/OS or z/VM book. In the standard in > use at the time CPVOLs were invented, VOL1(+16) was 25 spaces followed by > a 10-character OWNER ID starting at VOL1(+41), which is where the "CPVOL" > designation is stored. This is what you find in the FMLRC macro. > > Alan Altmark > z/VM Development > IBM Endicott > >
