On Fri, 9 Jan 2009 09:24:36 +0100, Tidy, David (D) <[email protected]> wrote:
My 2 questions are: >1) does anyone have a policy on GRS CNS positioning in their sysplex >(and if so what is it and why)? >2) otherwise does anyone have any opinion on whether it might make sense >to position CNS in either the busiest or the quietest system in the >sysplex (the former on the basis of reduced traffic, the latter on >better CPU allocation)? No hard and fast recommendations here, but you also want to consider: Proximity to the GRS lock structure (ISGLOCK) - internal links are faster than external (caveat: zero experience with Infiniband) CF CPU utilization and other structures in the CF LPAR that houses ISGLOCK Whether DYNDISP is ON or OFF for the CF LPAR housing ISGLOCK IBM recommends DYNDISP OFF, but we're in sort of a catch-33 with our configuration for now... Regards, Art Gutowski Ford Motor Company ---------------------------------------------------------------------- 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
