It will depend on what your POC encompasses.. how many Linux guests? What software/middleware?.
You might want to consider a 2nd level guest rather than building a separate LPAR -- that way you can manage things under a single zVM and dynamically change things (give your 2nd level zVM more storage, for example) much more easily... Scott On Mon, Sep 14, 2009 at 7:52 AM, Vince Getgood < vincent.getg...@xchanging.com> wrote: > Hi all, > I'm not a VM expert, so forgive me if this seems a newbie quetion. > > I have a z800 running z/VM, which has two production z/OS guests, and the > usual collection of CMS guests (TCPIP / OPERATOR etc). > > We discovered recently that the z800 has an IFL (long story - don't ask!) > and would like to steal some of the 8GB currently allocated to VM, to run > up a VM / Linux LPAR for a POC. > > The two z/OS guests are defined at 256MB & 512MB (Bill Gates, are you > watching??), and don't page. > > In your most esteemed opinion, what could I steal from the VM LPAR without > hurting it's and the guests performance / making it page? > > Personally, I think 2GB would be enough. > > Comments and opinions welcome. >
