- Upgrade LifeKeeper on all nodes in the cluster including the WebSphere MQ Recovery Kit following the instructions documented in the Upgrading LifeKeeper section of the LifeKeeper Installation Guide.
- Upgrade IBM WebSphere MQ software on each node in the cluster using the following steps:
a. If one or more LifeKeeper IBM WebSphere MQ resource hierarchies are in service on the node being upgraded, they must be taken out of service before the upgrade of the IBM WebSphere MQ software can be done. This can be done by switching over to the standby node.
b. Follow the IBM WebSphere upgrade instructions.
- Once the IBM WebSphere software has been installed on the node, bring the LifeKeeper IBM WebSphere MQ resource hierarchies in service (restore) and verify the operation of each Queue Manager.
- Once the operation of each Queue Manager is confirmed, upgrade all the other nodes in the cluster.