Early storage planning
As you begin to consider the storage you're going to use, establish your priorities first. The four primary components you must balance are financial cost, speed, reliability, and capacity. Cost is typically the overarching control, and you can expect it to rise with increases in any of the other three. You may find that you need to sacrifice in one area or another to stay below your cost, so ensure that you have an established and agreed-upon prioritization of these elements.
To reliably support Cluster Shared Volumes, a storage device must support SCSI-3 persistent reservations. Persistent reservations are a finite resource; a device's limit is usually unpublished, and it is often lower than you might expect it to be. Fortunately, Hyper-V Server 2012 requires fewer persistent reservations than what 2008 R2 did. If your storage vendor has certified their products for Hyper-V Server 2012 in a multi-host environment, that usually indicates that they support persistent...
