"Chase, John" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED] m>... > Hi, All, > > We're renovating our page dataset allocations (z/OS 1.7 -> 1.9) and > found that our previously-used DEFINE specs from "many moons ago" need > "tweaking" beyond space and volser; specifically, SWAP vs NOSWAP. From > reading the following: > > SWAP|NOSWAP > specifies whether page space is defined for > local system queue area (LSQA) pages or for pageable private area pages. > (Auxiliary storage management separates private area address space pages > into LSQA pages and pageable private area pages.) > > SWAP Specifies that the page space is a > high-speed data set used during a swap operation to store and retrieve > the set of LSQA pages owned by an address space. > > NOSWAP Indicates that the page space is a > conventional page space used to record pageable private area pages. > > It appears that we should take the default of NOSWAP for our LOCALs and > PLPA/COMMON datasets. But since we don't currently "swap-out" address > spaces like "in the old days" (we don't have any specific SWAP > datasets), should we consider defining a subset of our new page datasets > with the SWAP parameter? If so, how many or what proportion? Since > nowadays just about everything is a "high-speed data set" (device), > would it make a measurable difference one way or the other? > > Any advice / recommendations / caveats would be appreciated. > > TIA,
SWAP datasets have been abandonned several z/OS releases ago. Kees. ********************************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ********************************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
