> guess I'm stuck in the Dark Ages; I'm astonished. Does that mean you don't even bother to define page data sets. In defense of my naivete, we run so many test systems under VM that I believe paging is commonplace.
No, you still have to define page datasets. We just find them very inactive. Before we went to 64-bit, we found we had no activity. With 64-bit you get 2-3 I/O's per second per page dsn. The ASM always checks its back-end. With XSTOR, that was the back-end. Now it's AUX-Stor. We have to ensure we have a high enough Virtual:Real ratio, but we are not paging. In that environment VIO is better than DASD I/O. - -teD I’m an enthusiastic proselytiser of the universal panacea I believe in! ---------------------------------------------------------------------- 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

