That was APAR VM63636, PTF UM31312. Shouldn't that be in the base of 5.2. 0?
On Thu, 10 Aug 2006 10:57:36 -0700, O'Brien, Dennis L <Dennis.L.O'[EMAIL PROTECTED]> wrote: >>We ran into something like this when we went from 4.4 to 5.1. We >actually >> ran out of page space. IBM >>pointed us to a page in a manual that said we should have enough page >spa >>ce for the sum of the size >>all our virtual machines. We "Bit" the bullet and got more page packs. >I >>don't remember details, but >>there were algorithm changes in 5.1. Once we added the page packs, I >don't >> remember any actual problems with it. > >At the time, we had 16 3390-3 volumes dedicated to paging. The >calculation showed that we should have 64, but we decided to try 32. I >believe we had 32G of main storage and 4G of expanded storage at the >time. IBM also said that their change to the paging algorithm had been >"too aggressive", and IIRC, they issued a PTF. We backed off to 4.4 >until the PTF was ready, so I don't think we ever ran with the original >5.1 algorithm and 32 page volumes. We still have the 32 page volumes >today, on z/VM 5.2.0 with 43G main/4G expanded. With our normal >workload, the page space is 20% full. >======================== ========================= ========================
