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Abstract

A high availability method and system manipulate and store document images and coded data. The method and system include an image local area network and a coded data local area network. The image local area network is operated at a high utilization because of the relatively large size of the image files transmitted over it. The coded data local area network is operated at a relatively low utilization level because of a relatively small size of the coded data files transmitted over it. Two or more work group servers are connected to the image local area network. Each work group server is connected through a work group local area network to the coded data local area network. Each work group server operates in both a primary mode to service its own work group LAN and in a hot standby mode to serve as a backup processor for its corresponding work group server when the corresponding work group server is in a failure mode. When the failure mode occurs, a local area network manager reroutes image files from the first work group local area network over the under utilized coded data local area network, to the second work group local area network and its work group server which is operating in a hot standby mode. In this manner, a high availability is provided for the image file processing and coded data processing by providing alternate LAN links having adequate capacity to accommodate the large rerouted image files.

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First Claim