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IBM WebSphere: Deployment and Advanced Configuration by Roland Barcia, Keys Botzum, Tom Alcott, Bill Hines

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WebSphere Clustering Architecture

Hardware Clustering

Later in this chapter, we'll walk through the mechanics of creating a WAS-ND cluster as well as some maintenance for a cluster and applications installed in a cluster. First, let's discuss the underlying technologies for WAS-ND clustering and WLM. Most likely, many of you are acquainted—at least in passing—with hardware clustering. Some examples of hardware clustering products are HACMP, Veritas Cluster Server, SunCluster, HP MC/Serviceguard, and Microsoft Cluster Server. All of these are examples of high availability (HA) products that provide “process recovery” or “process failover,” meaning that all the products mentioned monitor a process (or server), detect a failure, and then restart ...

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