On Wed, 15 Jan 2014 12:49:31 -0500, Mark Jacobs <mark.jac...@custserv.com> wrote:
>On 01/15/14 12:39, Bob Shannon wrote: >> The EC PUs are faster than the BC PUs, so the EC specialty engines are >> faster than BC specialty engines. Just look at a CPU chart, e.g., Cheryl >> Watson's, and compare the fastest EC and BC uniprocessors. >> >> Bob Shannon >> Rocket Software >> >> > >Thanks. One more question. Does anyone have a gut feel, or can point me >to some documentation about performance effects, or things to do/not do >while running a parallel sysplex with one CF on a z196 and the other on >a z10 BC? > Are you doing any "real" data sharing (DB2 data sharing for example)? If not, then it isn't going to matter. Also, if you aren't duplexing you can put the structures that are more response time critical in the fast CF. The usual thought is that the CF should be on the fastest CPUs. However, even in a heavy DB2 data sharing large sysplex environment, I have had configurations with at least 1 CF a generation behind the LPARs running z/OS and didn't have any problems. Of course when those CFs were upgraded you could see huge improvements in synch response times and less converted to asynch, but the end user experience (ETE response time) was not noticeable - even if measurable. As usual... YMMV !!! Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS ITIL v3 Foundation Certified mailto:m...@mzelden.com Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html Systems Programming expert at http://search390.techtarget.com/ateExperts/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
