I would like to know how these 2 scenarios would impact each virtual machine on the performance side. I understand the risk of loosing a disk, I can deal with a downtime of a couple of hours.
I need to have 6 Hyper-V VM on one machine. 2 moderate web servers, 2 moderate database servers, 1 backup server, 1 test server that will compile stuff. And I need it cheap: let's say I use a big bunch of 7K SATA disks (up to 12).
Question: performance wise, am I better with one big RAID 10 volume or with each disk being separated? If I'm doing one big raid volume, could one VM do too much HD activity and impact the others? Is there the same problem if I use one or two HD per VM?