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Storage Area Networks Developments

  • ID: 29016
  • January 2003
  • 11 pages
  • Faulkner
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Companies faced with voluminous information storage needs are turning to specialized networks to house, manage, and protect these vital assets. While network attached storage (NAS) has met the need for reliable data access at the file level, storage area networks (SANs) are optimized for high-volume block-oriented data transfers. Although both solutions address the need to remove direct storage-to-server connections to facilitate more flexible storage access, SANs provide the higher-performance and more scalable storage environment. This is achieved by enabling many direct connections between servers and storage devices--such as disk storage systems and tape libraries--over a variety of transports that may include Fibre Channel, Infiniband, Gigabit Ethernet, IP or ATM. The choice of transports will hinge on such factors as the distance between storage locations, the presence of other types of traffic, and the organization’s budget constraints.

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