Workload management

No matter which cluster member is used in the WebSphere WLM environment, during a database failover all requests to access data will fail. After a failover, any request should succeed after no more than one retry. The workload-managed WASs do prevent some node or process failures, as tested in our topologies, but not database network, database node and database process failures. Availability has two distinct aspects: process availability and data availability. The WebSphere WLM mechanism protects the system from process failures. We still need HA data management for WebSphere data availability.

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IBM is a trademark of the IBM Corporation in the United States, other countries, or both.