Horizon Pod and Block Design Methodology : 5.1 Deployment Models : 5.1.1 Management Block
   
5.1.1 Management Block
Service providers can offer either a shared or dedicated management block, depending on the tenant service type.
While it is technically feasible to run the entire solution (management and desktop resources) on a single vSphere cluster, this would only be recommended for Proof-of-Concept (PoC) or test environments. For production workloads, it is important to maintain separation of management and workload resources.
There are many reasons to maintain separation of the management cluster to production desktop and application resource clusters. In the event of a power outage or other disaster, the management block is the first environment that is powered on. This provides a high level of certainty that the environment can be managed, and will not be impacted by resource demands and tasks used for desktop virtual machines (for instance, hundreds or thousands of VMs powering on). Even during normal day-to-day operations, the separation of management and resource clusters provides a better guarantee of performance, resulting is a greater quality of service.