IBM Mainframe Discussion List <[email protected]> wrote on 09/13/2007 11:47:34 AM: > Perhaps you can clarify something. If I understand correctly, 2 PAVs are > assigned to each page dataset; 1 PAV for single-page requests, and 1 PAV for > block requests. If so, is it possible to have any block requests against the > PLPA or COMMON page datasets? I understand that if both are on the same > volume, each will have its own path to the dataset, but will it have > both? Just curious.
ASM creates two sets of I/O control blocks for each page data set - one to be used for any kind of request, and a a second set to be used for a single page read if the first set is busy. As far as I know, that applies to PLPA and Common data sets as well as Local. Common could have a long output channel program due to page steal processing, and I suppose PLPA could also if common becomes full and overflows to PLPA. Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY ---------------------------------------------------------------------- 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
