Another point about PR/SM: The more LPARs you have, the higher the PR/SM 'overhead'. Which will affect all your LPARs, not just the Linux ones.
Dave Dave Stuart Prin. Info. Systems Support Analyst County of Ventura, CA 805-662-6731 david.stu...@ventura.org>>> "Rob van der Heij" <rvdh...@gmail.com> 4/6/2011 11:02 AM >>> 2011/4/6 Przemyslaw Kupisz <p.kup...@gmail.com>: > Limit for z10 is 60 LPARs, so why just only 12 Linux images on 1 IFL? > IMHO you can run 60 Linux images on 1 IFL. This kind things happens when they deliver glossy brochures to people living under a rock...:-) For z/OS a popular LPAR configuration rule seems to be that you don't want to assign logical CPUs and weight such that the LPAR has less than 10% of the CPU. Maybe they transposed that rule freely. Or maybe the customer had 5 IFLs and someone concluded that you thus can run 12 images per IFL. One of the interesting side-effects of the 60 LPAR thing that I see is peole running z/OS test systems on z/VM. They started to create more z/OS images because they could, and found out it is almost impossible to manage with the restrictions that PR/SM has. So once they were spoiled by having many z/OS images, they were ready to go beyond that point and take advantage of z/VM. Rob ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
