Is it necessary to have RAID in a virtual machine?
I am in the processing of building up a new VM Host with Essentials 5.1. The server will house several guest OSes including several Ubuntu Linux boxes. The host itself is RAID 5 with 10 total drives, the 10th drive acting as a Global Hot Spare.
My question is, with the host configured for RAID, should I configure the Ubuntu Guest OSes with software RAID as if the box was standalone with all the drives or would this be unnecessary? I understand the reasoning for RAIDing a standalone box with the same setup through Linux RAID but since the drives are managed by the host and already in a redundant configuration, should I just create a single VMDK for the server?