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...less than one minute downtime a year. But even the most robust network needs downtime for component maintenance and system upgrades. The difference with video surveillance systems is that downtime can jeopardize public safety and compromise the security of assets, operations and facilities. While infinite redundancy would certainly solve the problem, such a strategy would be cost-prohibitive and impractical.

How do you address the challenge of designing your video surveillance system to minimize the risks of downtime? Different strategies apply for each system element -- the network, the servers hosting the video management software, storage and the network cameras. Depending on the component, there are a number of best-practices options for maximizing availability.

The Network

Hot swaps and redundant power supplies on switches and other failover technologies are good options for the most critical components of the WAN or LAN. You can monitor these devices using tools ranging from simple bandwidth monitoring and generic Simple Network Management Protocol (SNMP) applications, to highly-sophisticated, detailed network traffic and packet analysis...

NOTE: All illustrations and photos have been removed from this article.



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