John Giltner wrote: >A single LPAR can't have a IFL and a CP. On the System z10, this restriction is removed by using something new called a "z/VM-mode LPAR" (a.k.a. "z/VM Image Mode" LPAR). Such an LPAR can contain almost any mix of CPs, IFLs, zIIPs, zAAPs, and/or ICFs and must run z/VM as the base operating system. You'll need HMC and SE Version 2.10.0 or higher to configure this mode. This hardware support was announced with the System z10 EC on February 26, 2008, and on the same day IBM published a Statement of Direction concerning a future release of z/VM which (IBM expects) will support this new LPAR mode. (Statements of Direction are subject to change.)
I know a lot of people will appreciate having this new capability. It should greatly simplify configurations in many cases, and it also helps take a lot of pressure off pre-planning. It also should allow you to do some interesting new things, like use spare CP capacity more easily to supplement IFL capacity "on demand." I guess you could say that the IFLs become a lot more like zAAPs and zIIPs, since you could view them as supplementing the CP capacity pool for Linux workloads rather than as a completely separate pool. And that further increases the cost- and performance-efficiency of the mainframe. - - - - - Timothy Sipples IBM Consulting Enterprise Software Architect Specializing in Software Architectures Related to System z Based in Tokyo, Serving IBM Japan and IBM Asia-Pacific E-Mail: [EMAIL PROTECTED] ---------------------------------------------------------------------- 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
