What is the current rule-of-thumb for the mainframe logical CP to physical CP ratio and what is the performance impact of going above that ratio? I believe it had been 2:1. We are in the evaluation process for one or two mainframe upgrades. Our current environment includes a z9EC 2094-504 with 4 prod LPARs and 1 tech support LPAR with a total of 12 LP's, so a ratio of 3:1. Some of the candidate mainframes have faster speeds but only 2 or 3 CP's. This would give a ratio of 6:1 or 4:1, and even higher (up to 9:1) if we later bring in 3 more LPARs as planned (up to 6 more LP's).
Another concern I have with only 2 CP's is the occasional situation where some 'looping' condition would dominate a large CP, or half of the box. Thank you for any feedback, John Zoppetti ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
