Hello, In the upcoming days we'll be activating Intelligent Resource Director in our systems (CSSPQ everywhere, and LPAR CPU management in the main production sysplex).
Not being actually concerned about CSSPQ efects, as we don't expect any major changes (we've measured our SAP queues, being less than 1.5 in the maximum 15 minute average), we are about LPAR CPU management. Our capacity planning staff are currently basing their CPU utilization measurements and machine upgrades on the LSPR tables (LPAR mode with z/OS 1.4 as this is our current version). We are moving soon to z/OS 1.7, so we began to turn our eyes into IBM's zPCR tool. As IRD will be configuring processors ON/OFFline, uniprocessor effective capacity will change, and according to zPCR, this change will be more than noticeable. The problem that arises is: how can we measure CPU usage in an environment where CPU capacity may change over time? The main parallel sysplex (the one being IRD-fully-enabled) consists of 10 z/OS images running in four 2084 (soon to be upgraded to 2094) and one 2094, one or two LPARs each (total capacity reported by zPCR, based on a 450 MIPS 2084-301, being 33500 MIPS). Is it a good idea to use LSPR static tables for Capacity Planning in this environment? Is there any way to do it dinamically depending on the number of online logical processors? Should we use entire CEC's uniprocessor power as a basis for measurements? Thanks in advance ---------------------------------------------------------------------- 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
