VMware Validated Design uses different types of storage. Consider storage mode, hardware compatibility for the selected storage, and I/O controllers.
All functional testing and validation of the designs is done using vSAN. Although VMware Validated Design uses vSAN, in particular for the clusters running management components, you can use any supported storage solution.
If a storage solution other than vSAN is chosen, you must take into account that all the design, deployment, and Day-2 guidance in VMware Validated Design applies under the context of vSAN and adjust appropriately.
Your storage design must match or exceed the capacity and performance capabilities of the vSAN configuration in the design.