Load Balancing VMware vSphere Clusters with DRS
Recently, a customer reported that DRS was not working to load balance the cluster. Under normal circumstances, a minor imbalance is nothing to be concerned about. This is because the main objective for DRS is not to balance the load perfectly across every host. Rather, DRS monitors the resource demand and works to ensure that every VM is getting the resources entitled. When DRS determines that a better host exists for the VM, it make a recommendation to move that VM.
However, some customers still prefer to have an even distribution of utilization across all hosts within a cluster. This article is intended to provide recommendations to accomplish this goal, bearing in mind that in most cases this will result in additional vMotion activity.
This threshold is a measure of how much cluster imbalance is acceptable based on CPU and memory loads. The slider is used to select one of five settings that range from…
Read the entire article here, Load Balancing vSphere Clusters with DRS
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