It looks like there is a TRACKWRITE stage in PIPELINEs to accomplish
wiping out CYL 0 TRK 0 (head 0).
Frank M. Ramaekers Jr.
Systems Programmer MCP, MCP+I, MCSE & RHCE
American Income Life Insurance Co. Phone: (254)761-6649
1200 Wooded Acres Dr. Fax: (254)741-5777
Waco, Texas 76710
-----Original Message-----
From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On
Behalf Of McKown, John
Sent: Thursday, September 10, 2009 9:34 AM
To: IBMVM@LISTSERV.UARK.EDU
Subject: Re: Remove a DASD volume label...
> -----Original Message-----
> From: The IBM z/VM Operating System
> [mailto:ib...@listserv.uark.edu] On Behalf Of Frank M. Ramaekers
> Sent: Thursday, September 10, 2009 9:27 AM
> To: IBMVM@LISTSERV.UARK.EDU
> Subject: Remove a DASD volume label...
>
> Is there a way to remove a volume label? (ICKDSF only has a
> way to ADD
> a label.) I want to revert an initialized disk (actually a
> FASTCOPY'ed
> disk) back to it's uninitialized state (or just remove the
> label). Oh,
> no DITTO under VM here :(
>
> Frank M. Ramaekers Jr.
Perhaps the easiest way would be to create an MDISK of 1 cylinder at
cylinder 0 on the device. Then put that MDISK as writable by a CMS user.
Now do a CMS FORMAT on the MDISK. IIRC, the CMS FORMAT command will
destroy the standard volume label. If not, then make the MDISK 2
cylinders in extend. Do the CMS FORMAT command on it. Now use DDR to
copy the second cylinder of the MDISK over top of the first cylinder.
Just some thoughts from an ex-VM'er (many years ago).
--
John McKown
Systems Engineer IV
IT
Administrative Services Group
HealthMarkets(r)
9151 Boulevard 26 * N. Richland Hills * TX 76010
(817) 255-3225 phone * (817)-961-6183 cell
john.mck...@healthmarkets.com * www.HealthMarkets.com
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