Software Upgrade Considerations
We can't stress the importance of keeping your application and infrastructure software up to date. Many companies are moving to a network-deployed push model for software upgrades and fixes. This guarantees that all connected components in their infrastructure (servers, routers, workstations, and so on) are as up to date as possible at all times. If you are in a 24x7x365 uptime requirement for an application, finding down time to upgrade or apply fixes might be a little difficult. It is less difficult if you are using a multi-server clustered configuration that permits you to take a server offline (out of the cluster), apply service packs to it, and then rejoin the cluster. Keep these types of options in mind when ...
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