James, We have a z/900 with 4 standard engines and 16G of memory. There are 3 production z/OS systems running on VM, along with the 500+ Linux guests. The z/OS systems are very small, relatively speaking and we don't have a lot of vendor software on them, because of the cost. We also have a lot of joint projects with IBM, which defray the costs of some software and hardware. So, we are unusual in that regard.
Most of the Linux systems are being used by students in their courses, i.e. web development, etc. So, they aren't heavy workers, though running a Linux guest is "heavy" enough. We do have a number of production servers as well, including our campus email system. Why no IFLs? For what we are doing, cpu doesn't seem to be the issue most of the time. Demand for memory and paging are our big "gotchas". We did add a processor when adding more memory last spring and both helped our performance greatly. Why standard cpu rather than IFL? It is what we could talk IBM into giving us at the time. I wasn't sure if the original poster was looking for specific information about using IFLs, or if he was just looking for general information about running lots of Linux guests. Martha On Thu, 9 Dec 2004 14:53:01 -0600 James Melin said: >Just curious, why no IFL? Do you have any z/os work on those processors? >Just wondering how you are beating the 'per engine' charge most z/os >software is billed at. Of course, it you have all z/vm & Linux that makes >no difference > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
