On Thu, 21 Feb 2008 13:04:31 -0600, Wayne Bell wrote: >Hello, > >Since we have migrated to z/OS V1.9 from V1.7 (Including, of course, the new >Storage Management algorithms), the counts for Blocked Paging in both the >SMF Type 30 and RMF Type 71 records have been virtually reduced to zero >while the Demand Paging Rate has remained similar to what is was in V1.7. > >Two questions, please: >1) Is block paging still the concept of gathering multiple pages in Central >Storage and writing them out to Auxiliary Storage with one I/O? It was >mentioned to me that this concept is obsolete. > >2) Has anyone else seen these counts go to zero? If so, do you know why >and/or how to get Blocked Paging turned back on? > >Thanks for your time, >Wayne Bell
As described in several locations, such as the following http://publibz.boulder.ibm.com/cgi- bin/bookmgr_OS390/BOOKS/E0Z2M15A/5.2.29?DT=20080125155816 IBM has removed "physical swapping of address spaces" from z/OS at release 1.8. At the above link, please note the second paragraph. This change may have resulted in the effect you've noticed regarding the SMF and RMF statistics. If true, there is no going back. Brian ---------------------------------------------------------------------- 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
