A common question is related to the type of disk that should be utilized for each storage tier. That's a complex discussion that you will need to have with your storage administrator or vendor. Most intelligent storage arrays provide some type of acceleration or caching mechanism that will potentially reduce the storage backend requirements. With the reduction of the requirements, disks with higher capacity and lower performance may be used.

The following figure shows the virtual disk-to-disk type relationship typically used by storage providers:

The most common type of disks used for VMware View deployments are as follows: