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Article Excerpt Storage demands are growing at such a high rate that existing architectures like Fibre Channel SANs and Gigabit Ethernet NAS are already starting to reach their limitations. Fortunately, the new iSCSI protocol--which facilitates data transfers over intranets and manages storage over long distances--positions IP storage as the solution to these architectural limitations. For the enterprise, iSCSI is a natural for e-mail, database, and business continuance applications, as it mainly uses server-based replication software and takes advantage of the IP backbones and enterprise networks already in place with low-end and midrange servers.
The rise of iSCSI and IP storage coincides with the declining popularity of parallel interfaces, with their inherent physical limitations, and the increasing popularity of Serial ATA (SATA) and other inexpensive serial interfaces (disk drive vendors, in fact, are now delivering enterprise-level devices with SATA interfaces that provide 10,000 RPM, 1.2 million hours MTBF, 5.2 millisecond seek time, and five-year warranties, at prices 30% lower than traditional SCSI drives). It...
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