I should have added that sizing was a SWAG. Went from 4 mod-9 (8 local page) to 3 mod-27's(6 local page). About 2.5 times more slots.
_________________________________________________________________ Dave Jousma Assistant Vice President, Mainframe Engineering [email protected] 1830 East Paris, Grand Rapids, MI 49546 MD RSCB2H p 616.653.8429 f 616.653.2717 -----Original Message----- From: Jousma, David Sent: Wednesday, November 19, 2014 11:22 AM To: 'IBM Mainframe Discussion List' Subject: RE: Page Data Set Sizes and Volume Types Good luck. I asked this question about 6 months ago. Got many different responses, not many general rules-of-thumb it seems. I ended up with 3 mod-27's per lpar, with two local page datasets on each volume. Seems to be working ok. I do not share same volume with multiple lpars. IEE200I 11.16.56 DISPLAY ASM 809 TYPE FULL STAT DEV DATASET NAME LOCAL 10% OK 7312 PAGE.SYS1.LOCAL1 VOLSER DEVTYP SIZE USED AVAIL ERRORS PAGS11 3390P 2,702,879 292,178 2,410,701 0 PAGE.SYS1.LOCAL1 *VSAM* VS CATALOG.VREZ138 ------------------------------------------------------------------------------ PAGE.SYS1.LOCAL1.DATA PAGS11 225240 ? 1 3390 VS ? ? ? 2014/04/24 2014/04/24 CATALOG.VREZ138 _________________________________________________________________ Dave Jousma Assistant Vice President, Mainframe Engineering [email protected] 1830 East Paris, Grand Rapids, MI 49546 MD RSCB2H p 616.653.8429 f 616.653.2717 -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Lizette Koehler Sent: Wednesday, November 19, 2014 10:42 AM To: [email protected] Subject: Page Data Set Sizes and Volume Types I have been reviewing various documents on how to size the Page Data Sets. I was wondering if there are any guidelines on what can be used today. This should be kept to z/OS V1.12, 1.13 and 2.1 which I think will be the more dominant operating systems in use right now. I know that the number of Slots will drive what I allocate. So I am looking for the following information. I have not done this in many years so I am very rusty. 1) How to calculate the number of slots per page datasets a) I need to base this on 3390 Mod 3/9/27/54 2) What do I need to stay away from when determining where the page datasets go a) For example, if I use a Mod27 and I need to place multiple page datasets on the volume Should they all be for the same LPAR if in a PLEX Should they all be for unique LPARs if in a Plex 3) What are the maximum values I can create a page dataset? Can I use a whole Mod3/9/27/54 for ONE page dataset? I have looked through Hot Flashes (Cheryl Watson) and MXG sourclib. I have run through some of the Redbooks and share presentations. I am now looking for real life thoughts. I also thought this would be a good topic for the archives. Thanks for any information Lizette ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
