Not to be a forum hog (oink oink),

but something else to consider with SANs and VM's, is that lots of your hardware performance measurements go flying out the window.

for example, say you're on shared disk on the SAN and you're showing 70% Disk utilization. Behind the scenes the apps that are all sharing the SAN disks could be filling the /actual/ available throughput. I've not run into it yet, but it's something I try to keep in mind. Depending on your organization, you might try to get some access to the SAN tools to see the actual disk use on shared disk... or demand dedicated disk.

The same principles apply to virtualization and Memory/CPU measurements.

I'd be interested to know if anyone has the answers.

~BOT