Introduction to VMware vSAN : Use Cases : 3.1 Management Cluster
   
3.1 Management Cluster
Traditionally, providing dedicated storage for management-only clusters increased providers’ infrastructure costs. It required the purchase of an additional storage array to provide the expected performance and availability for what is typically a high I/O performance and highly-available virtual environment. These costs, in turn, were inherently passed on to the consumer. With vSAN, these costs are significantly reduced, making it an ideal solution for a dedicated management environment. Additionally, leveraging vSAN for the management cluster eliminates single points of failure and is completely integrated with the VMware vCenter Server® system. See the following figure for a logical diagram of this architecture.
Figure 1. vSAN Based Management Cluster