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Server maintenance involves keeping a server updated and running so that a computer network can operate smoothly. Properly maintaining a server is usually the task of a network administrator, and it is vital to the performance of the network. If maintenance is not conducted on a computer network, regardless of whether the network is small or large, application software usually will not run as well as expected. In some cases, a network may even experience total or partial network failure if proper maintenance is not conducted on schedule.