Advanced Node Failure Detection

The Advanced node failure detection function can reduce the number of failure scenarios that result in cluster partitions.

Before you begin

The Common Interface Model (CIM) server used in conjunction with either an Hardware Management Console (HMC), or a Virtual I/O Server (VIOS) partition on an Integrated Virtualization Manager (IVM) managed server, or an HMC (minimum V8R8.5.0) used with a Representational State Transfer (REST) server are required to implement and configure advanced node failure detection. See Planning advanced node failure detection for hardware and software requirements and versions.
Before setting up advanced node failure detection, ensure that the latest IBM PowerHA SystemMirror for i Group PTF is installed.
The setup instructions include steps for creating a *SYSTEM certificate keystore. This keystore may have already been created. If so, the password is required. Ask your IBM® i administrator for the keystore and access information.

About this task

Configuring advanced node failure detection on a cluster node is done one of three ways. All three methods follow a similar procedure but employ different steps and run different commands to implement advanced node failure detection.

To allow a VIOS IVM with a CIM server or an HMC using either a CIM or a REST server to notify IBM i cluster nodes of sudden partition changes or system failures, Secure Shell (SSH) communication between the HMC or VIOS and the cluster nodes must be enabled. A digital certificate from the HMC or VIOS is required and a secure certificate keystore and access to the certificate, if necessary, must be created. This certificate from the HMC or VIOS IVM is copied and installed on every node in the cluster that requires monitoring.

Procedure

Select your method of connection from the list below for detailed information and steps:
Follow the instructions in the link to configure advanced node failure detection in your network.