It sounds like you already have more than one z/VM LPAR though... If so.. then there's probably some limit on how many z/VM systems you realistically want to manage. In this case, I wouldn't slice things up except to separate workload or provide some type of HA - period. I would be after the minimum number of z/VM systems to have to manage my workloads or separate them.
I'm not sure resource usage would be a factor, PRSM is pretty minimal as I understand it -- the real factor is people hours -- the more zVM systems, typically the more people hours needed. There's lots of automation around to minimize that, but in my experience, more z/VM systems requires more time to support. (roll out maintenance, etc) Scott On Thu, Dec 3, 2009 at 3:00 PM, Leland Lucius <[email protected]> wrote: > I know the answer will be "It depends.", but I figure I might as well ask > anyway. > > We're in the process of migrating Websphere workloads from AIX to zLinux > and > figure we will need to add additional IFLs and memory. But, rather than > simply boosting the existing VM LPARs, we're wondering if it wouldn't be > better to split them up into a few smaller LPARs instead. When I say > large, > I'm talking maybe a 300GB/15 IFL footprint for one of our VM LPARs. We'd > split that into maybe 2 150GB or 3 100GB LPARs. > > We would also gain more operational freedom if we split the workloads > correctly, so it's looking pretty good to us. But, we don't want to do it > if there will be too much additional overhead in terms of resource usage. > > Thanks much, > > Leland > > ---------------------------------------------------------------------- > 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 > ---------------------------------------------------------------------- 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
