You might investigate the use of V-disk instead of or in addition to T-disk. It can be controlled by command.
Regards, Richard Schuh > -----Original Message----- > From: The IBM z/VM Operating System > [mailto:[email protected]] On Behalf Of Mike Walter > Sent: Thursday, September 03, 2009 12:36 PM > To: [email protected] > Subject: Re: Resizing TDSK on active system > > Well, once again "it depends"... you can adjust it (use > CPFMTXA to change the cylinders allocated to "TEMP") on the fly. > But CP only reads the allocation but map when the DASD is > brought online. > > Since TDISK are in your CP_Owned list, they can't be brought > offline on a running system. So CP cannot re-read the > allocation bit map to find the added or removed TEMP cylinders. > > (Note: CP does update bits in the allocation bits to indicate > usage of the previously defined areas - so changing the use > of previously allocated areas will end up with CP re-writing > them anyway - not a good idea). > > You can add a while new volume for some purpose (temp disk, > page, spool, > etc.) on the fly, and CP can read that new DASD's bitmap when > it comes online. > > Mike Walter > Hewitt Associates > The opinions expressed herein are mine alone, not my employer's. > > > > "Frank M. Ramaekers" <[email protected]> > > Sent by: "The IBM z/VM Operating System" <[email protected]> > 09/03/2009 02:15 PM > Please respond to > "The IBM z/VM Operating System" <[email protected]> > > > > To > [email protected] > cc > > Subject > Resizing TDSK on active system > > > > > > > Can a TDisk size be read adjusted on a running system. Assuming: > > 1) No TDisks are allocated in the space > > 2) The space is DRAINed > > TIA, > > 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 > > > > > > > _____________________________________________________ > > This message contains information which is privileged and > confidential and is solely for the use of the > > intended recipient. If you are not the intended recipient, be > aware that any review, disclosure, > > copying, distribution, or use of the contents of this message > is strictly prohibited. If you have > > received this in error, please destroy it immediately and > notify us at [email protected]. > > > > > > > The information contained in this e-mail and any accompanying > documents may contain information that is confidential or > otherwise protected from disclosure. If you are not the > intended recipient of this message, or if this message has > been addressed to you in error, please immediately alert the > sender by reply e-mail and then delete this message, > including any attachments. Any dissemination, distribution or > other use of the contents of this message by anyone other > than the intended recipient is strictly prohibited. All > messages sent to and from this e-mail address may be > monitored as permitted by applicable law and regulations to > ensure compliance with our internal policies and to protect > our business. E-mails are not secure and cannot be guaranteed > to be error free as they can be intercepted, amended, lost or > destroyed, or contain viruses. You are deemed to have > accepted these risks if you communicate with us by e-mail. >
