13.4.2. Setting a Cluster Resilience Policy
A cluster resilience policy determines the action to be taken for the virtual machines running on a host which has shut down unexpectedly or been put into maintenance.
The next available host depends on the cluster policy you have set, as described in
Section 12.3.2, “Cluster Policy”. For example, if your cluster policy is set to Even Distribution, the next available host refers to the host which is running the lightest CPU workload at the time migration is triggered. The exception to this rule is the host which is elected as the Storage Pool Manager, because more of its CPU resources are in use for writing metadata from all virtual machines in the system. Therefore, the SPM tends to run less virtual machines than other hosts.