Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?

Which statement accurately describes cache tier sizing guidance for an all-flash vSAN cluster that will be supporting write-intensive workloads?
A . Multiple disk groups with larger cache devices should be used.
B . Multiple disk groups with two cache devices per disk group should be used.
C . A single disk group with a small cache device should be used to minimize de-staging write amplification.
D . Two cache devices per disk group should be configured for redundancy.

View Answer

Answer: A

Explanation:

While 1 to 5 disk groups per host are supported, we recommend a minimum of 2. Adding more disk groups can improve performance. Reference: https://storagehub.vmware.com/t/vmware-vsan/vmware-r-vsan-tm-design-and-sizing-guide/flash-cache­sizing-for-all-flash-configurations-2/