>can z/OS support 80 x 32 = 2560 active CPs per sysplex? No sysplex cares how many CPs an individual system has.
If a single z/OS system can have n CPs, and if you can have m of those in a sysplex then by definition you can have n*m CPs in a sysplex. The n*m number is basically "content free" -- it is likely not a useful indication. >how bad was the overhead incurred in >managing an 80-way z/OS? I do not have that information. If and when it is relevant to provide that information, I'm sure it will happen. As with any MP situation, it is extremely workload-sensitive. If your 80-way is primarily doing 80 unique things you get one sort of answer. If it ist primarily running 80 tasks of the same server all contending (for example) for a particular lock or ENQ or even a 256-byte line of memory) you get another very different answer. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- 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
