Jim, Thanks for correcting me. I worked on an ESP 3090-200 in Australia and I was certain that VIO was in ES then, but obviously that's the memory I have with no error correction.
Ron > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of > Jim Mulder > Sent: Wednesday, May 05, 2010 9:59 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: [IBM-MAIN] Auxiliary Storage Management I/O in a RAID array world > > IBM Mainframe Discussion List <IBM-MAIN@bama.ua.edu> wrote on 05/05/2010 > 11:16:18 PM: > > > As far as VIO goes, it started outperforming standard disk from the day > the > > first 3090-200 shipped with expanded storage. With ES the VIO track > window > > was no longer written and discarded from storage when it was no used, > but > > was copied to from CS to ES. This meant that VIO stopped causing major > page > > thrashing, and the performance became incredibly good. Although ES is no > > longer supported, IBM continue to keep VIO in CS as part of the working > set. > > It was a few days later than that. SP2.1.3 (first release to support > 3090 and ESTOR) did not have VIO to ESTOR. That came a few years > via SPE: > > Apar: OY08837 Ext. Symptom: NF Symptom Keyword: FUNCTION > Abstract: SUPPORT THE USE OF EXPANDED STORAGE FOR VIO PAGES > > RB20 PSY UY90242 UP88/07/05 P F806 > RC10 PSY UY90243 UP88/07/05 P F806 > > > Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu 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 lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
