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Storage Area Network
A storage area network (SAN) is a high-speed special-purpose network or subnetwork that interconnects different kinds of data storage devices with associated data servers on behalf of a larger network of users.

Typically, a storage area network is part of the overall network of computing resources for an enterprise. A storage area network is usually clustered in close proximity to other computing resources, but may also extend to remote locations for backup and archival storage, using wide area network carrier technologies.

A storage area network can use existing communication technology such as optical fiber. Some SAN system integrators liken it to the flow of data in a personal computer that is shared by different kinds of storage devices such as a hard disk or a CD-ROM player.

SANs support disk mirroring, backup and restore, archival and retrieval of archived data, data migration from one storage device to another and the sharing of data among different servers in a network. SANs can incorporate subnetworks with network-attached storage (NAS) systems.



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Posted by ROOT Technologies


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