As introduced, at the start of the chapter, vSphere DRS is enabled on a cluster of ESXi hosts. DRS uses vSphere vMotion to migrate VMs between hosts in the cluster to balance resource utilization within the cluster.
Let's go over some of the benefits of DRS:
- DRS is flexible when it comes to allowing rules/conditions to be configured by the administrator when placing VMs or reorganizing the cluster. You can create DRS host affinity rules and/or VM anti-affinity rules, which allows for the conditional placement of VMs.
- DRS is also used by vCenter when you are entering hosts into maintenance mode. When you put an ESXi host into maintenance mode, vCenter leverages DRS to migrate VMs running on the host to other suitable hosts in the cluster.
- DRS extends its capabilities to reduce the energy consumption of the cluster by evacuating underutilized...
