Commerce DB2 database maintenance solution | Maintenance not requiring planned outages


Maintain and update WebSphere Application Server tier


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While in production, continue to monitor the important parameters that we discussed in Chapter 17, Monitor and tune WebSphere Application Server for WebSphere Commerce.

In this chapter, we describe how to maintain and update the WebSphere Application Server machines in a WebSphere Commerce High Availability configuration. We describe actions that need to be taken in order to perform hardware upgrades, OS upgrades, product upgrades, fix installations, deployment requiring an EAR update, and log maintenance.

We group the types of upgrades into types that do not require a server outage or restart, and types that do require an outage. As our application server configuration only consists of active nodes, the upgrade types that require a server outage are further distinguished according to whether upgraded and not yet upgraded servers can be active at the same time (compatible upgrade) or not (incompatible upgrade).
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