>In such cases, one achieves significantly better performance by running z/OS on z-architecture in 64-bit mode with all real memory configured as Central Storage, eliminating all CS/ES page transfers.
You have to have a significant E/C transfer rate for this to be true. We had one CEC with that and the overhead went down when we moved to 64-bit. Another CEC went up. The E/C rate was low. Significant: over 300 pages per second per CP (all LPARs) in one direction. Also, you may find AUX rates increasing. NOT because of storage constraints. Rather, the ASM wants to always check out the back end. In 31-bit, that was ESTOR. In 64, that's AUX. - -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
