On Wed, 8 Feb 2012 14:01:48 +0000, Lopez, Sharon <sharon.lo...@nc.gov> wrote:
>Can someone please help me determine what the 'acceptable paging' should be on >a system? We are having issues with MQ and broker. Thanks. > Any amount that still keeps your end user response time and job turnaround times within your SLAs. If you have no SLAs then whatever keeps your phone from ringing. :-) That being said, as inexpensive as memory is these days and the benefits of reduced I/O by taking advantage of features within the OS that utilize more memory, I think most shops try to keep their demand paging close to zero for production LPARs. One of the LPARs I support is a WAS development LPAR with 183 control and servant regions and even though it has 80G of real storage the average demand paging rate is probably between 10-30 and at times it goes up a lot higher (over 100). But since it is a development LPAR, the response time is acceptable. The production WAS LPARs have less regions and more storage and demand paging is zero. We are also using 64-bit WAS and large pages (LFAREA) for production. Regards, Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS mailto:m...@mzelden.com Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://expertanswercenter.techtarget.com/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: INFO IBM-MAIN
