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To allow a an HMC using REST server to notify IBM i cluster nodes of sudden partition changes or system failures, communication between the HMC and the cluster nodes must be enabled. A digital certificate from the HMC is required and a secure certificate keystore and access to the certificate, if necessary, must be created. This certificate from the HMC is copied and installed on every node in the cluster that requires monitoring.
Procedure
See Configuring on HMC with REST ServerAdvanced Node Failure Detection for more information.