Consider the following vSAN cluster scenario:

All hosts are members

of the same cluster.

All hosts are contributing storage capacity to the vSAN datastore.

There is not vSAN Witness Host.

All virtual machines are assigned a storage policy where Primary level of failures to tolerate = 1.

What is the minimum number of

physical hosts required to be a supported vSAN configuration?

A. Five (5)

B. Three (3)

C. Two (2)

D. Four (4)

Explanation:

VMware vSAN Design and Sizing Guide 6.5. Page: 18

When not using a witness, there is a minimum requirement of 3 ESXi hos

ts in a vSAN cluster. This is the same for all versions. While vSAN fully supports 3-node configurations, they can behave differently than configurations with 4 or greater nodes. In particular, in the event of a failure there is no way for vSAN to rebuild

components on another host in the cluster to tolerate another failure. Also with 3-node configurations, vSAN does not have the ability to migrate all data from a node during maintenance.