My experience was that the paging will be spread evenly until the -9s start filling up and then the additional space in the -27s will be used. That was from a recent experience with a combination of -3s and -9s. I have since converted everything to -9s.
The only possible answer to the other question is, "It depends." If your system is not paging to DASD very much, it probably doesn't matter. If you are paging to DASD, then the lower the space utilization, the more likely that the system can realize the benefits of block paging. Regards, Richard Schuh ________________________________ From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Mark Wheeler Sent: Tuesday, February 23, 2010 7:01 AM To: IBMVM@LISTSERV.UARK.EDU Subject: Adding different sized page volumes Greetings all, We need to add more page volumes (for both space and actuators) but are fresh out of 3390-9's. If we throw 3390-27's into the mix, should they be fully allocated as PAGE, or just cyls 1-10016? Will I start a religous war if I also ask about the latest recommendation for page volume space utilization? Max of 25%? 50%? "It Depends"? Best regards, Mark Wheeler UnitedHealth Group ________________________________ Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. Sign up now.<http://clk.atdmt.com/GBL/go/201469229/direct/01/>
