LPAR1 is not capped. It can take 100% of the CPU if LPAR 2 is idle and it needs it. If LPAR 2 is active, then LPAR 1 can take up to 80% and LPAR 2 20%. If LPAR 1 is idle, then LPAR 2 can take up to the hard cap value.
You did not mention the capping value for LPAR2. If, for example, you have hard capped LPAR 2 at, say, 150 mips, then it can never take more than that. So, LPAR 1 could take 85% and LPAR 2 15% if both are competing for the CPU. I assume you really meant to say MSU's instead of MIPS. MIPS is not a valid metric in this context. Hard cap, soft cap, and weights are all different controls, but all three need be considered to manage your machine. HTH and good luck. -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Tommy Tsui Sent: Wednesday, February 10, 2010 8:59 AM To: IBM-MAIN@bama.ua.edu Subject: cpu capping question Hi all, I have following question on CPU hard capping LPAR1 initial capping=No CPU weight 80 = 800mips LPAR2 initial capping=Yes CPU weight 20 = 200mips assume CPU has 1000mips my question is, for LPAR2 the maximum CPU utilization is 200 mips with hard capping but how about LPAR1? the maximum CPU utilization is 800mips or more than 800mips with initial capping=no? I knew that soft capping is more suitable for this case with defined capacity & weight. any help will be appreciated NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
