I'm running CentOS with Xen hypervisor. I've two virtual machines running on it (2 DomU and obviously 1 Dom0). I've two hard disks that I'm trying to dedicate exclusively to each of the DomU. This is basically to experiment with the performance of the VM's. If the two VM share the same disk then the disk read and write might be terribly slow compared to using dedicated drives. I'm trying to analyse advantages like that by the usage of separate hard disks.
How can I do this i.e. How can I assign separate Hard Disks to the VMs? Does Dom0 require a hard disk too?
Any help is appreciated.