Configuring Distributed Power Management

A DRS cluster can be configured to change the power state of the selected hosts in order to reduce the power consumption by the cluster. It does this by evaluating overall resource requirements and available resources. If the cluster can sustain without the contributions of one or more hosts, it would move the host(s) to a standby state. It's also capable of performing vice-versa; that is, DPM would also restore hosts from a standby state to a powered-on state if the cluster resource demand increases. In the following recipe, we will go over the prerequisites and the procedure to enable the feature.

Getting ready

While it's easy to move hosts to standby mode, to reverse the process DPM requires Wake On LAN (WOL) capability. In order to activate the capability, each host needs to be configured either with the iPMI or ILO setting:

Note

This will need to be done on every host.

1. Navigate to Configure | System. Traverse to IPMI/iLO Settings for Power Management...