Rick, A poorly typed sentence. It should read:
" Pages are only allocated slots on AUX if they have been paged out and remain unchanged. There is no attempt to back a getmained page with an AUX slot." My meaning is that ASM is not called to allocate an AUX slot until RSM needs to do some management. If there is never an event that requires a page-out then ASM will never allocate a slot. My reference to unchanged was to acknowledge that after being paged out, a page can exist in both REAL and AUX until it is changed. I think you are referring to the same thing - page-in/page-out via bit flicks. Ron > > I was taught, at one time, that AUX storage slots were assigned by ASM > call from VSM, during the processing of a GETMAIN request, and were > released at FREEMAIN time. Since then, I learned that VSM pages that > were paged out were assigned slots "on the fly" and the various AUX > storage tables within the AS were updated at that time. Also, that > pages > that were unchanged since last page-in were not physically paged out, > but rather something akin to "stolen". > > (My assumption, provably invalid, was that storage was acquired to be > used, thus each page would be changed at least once.) > > Rick > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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
