Chase, John wrote: > 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 type page datasets are long dead. The doc should have been changed long ago to remove the reference.
-- Mark Jacobs Time Customer Service Tampa, FL ---- In accordance to the principles of Doublethink, it does not matter if the war is not real, or when it is, that victory is not possible. The war is not meant to be won. It is meant to be continuous. The essential act of modern warfare is the destruction of the produce of human labor. A hierarchical society is only possible on the basis of poverty and ignorance. In principle, the war effort is always planned to keep society on the brink of starvation. The war is waged by the ruling group against its own subjects. And its object is not victory over Eurasia or Eastasia, but to keep the very structure of society intact. George Orwell - 1984 ---------------------------------------------------------------------- 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
