On Wednesday, 07/14/2010 at 12:29 EDT, Dave Jones <d...@vsoft-software.com> wrote: > Mike's explanation as to why Linux LPARs should have only IFLs available > is spot on.....this write-up would be a good candidate for the wiki, I > think.
Let's be careful with terminology. There are three relevant LPAR "modes": o A "Linux only" mode LPAR is a term used by the HMC to refer to an LPAR that has only IFLs, by defintion. o A "z/VM" mode LPAR has at least one CP and may also have one or more IFLs. If you want a virtual machine to run on IFLs in a z/VM mode LPAR, then you must alter the directory entry for that virtual machine. o An "ESA/390" mode LPAR has only CPs. Linux should run on IFLs whenever possible and advisable, letting common sense, your performance monitors, and your wallet be your guides. I hesitate to use the vague term "Linux LPARs" since a z/VM mode LPAR can be both a Linux LPAR and z/OS LPAR simultaneously. Alan Altmark z/VM Development IBM Endicott
