Ask that other university for a week's worth of PerfTK reports and study them to see what the size of their system is and the external nature of their workload is. It doesn't matter if it is a database search or a million record sort/merge that eats their system every night at 10PM, you just need to know where and how high the spikes will be. If you can fit a dampened version (DR is not business as usual) of those spikes in your machine, then you can do it. If their base utilization (CPU and Memory) is higher that what you have to spare then there WILL be problems. Make sure that your bosses know that the other universities DR can and probably will impact your own users performance.
/Tom Kern PS. I hope that the other university will contribute some funding to get you a z10. Duane Weaver wrote: > Well here is the scoop. We acting as a DR site for another university. > The other university wants to bring in their zVM 5.3 and run it under > our zVM 5.2 system. > Our z800 is running in basic mode with 1 lpar, running the zVM 5.2. > > At this point, we have no idea how few Linux servers they are bringing > and their function. > > > > > > > > At 11:33 AM 8/28/2008, you wrote: >> Are you saying you want to run a second level production z/VM? Why? >> >> -----Original Message----- >> From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] >> Behalf Of Duane Weaver >> Sent: Thursday, August 28, 2008 9:52 AM >> To: IBMVM@LISTSERV.UARK.EDU >> Subject: VM size for a 2nd level VM >> >> >> Are there any guidelines for assigning virtual machine size to a 2nd >> level VM system that will run a few Linux guests? >> >> I am running a standard zVM 5.2 system with the usual service >> machines. It is also running a ZOS guest with 500m virtual machine >> size and another ZOS guest with 1024m machine size. >> >> The cpu is a z800 running 1 lpar of zVM. >
