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IP SANs: A Guide to iSCSI, iFCP, and FCIP Protocols for Storage Area Networks by Tom Clark

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8.5. Internet SCSI

FCIP sits at one end of the IP storage spectrum, having the least IP content and the greatest Fibre Channel focus. From the standpoint of IP-based SANs, FCIP is really not so much of an IP storage strategy as a Fibre Channel exten sion and perpetuation strategy. The iSCSI protocol is the polar opposite of FCIP, having the most IP content and no Fibre Channel element at all. Rather than a migration vehicle from Fibre Channel SANs to IP SANs, iSCSI represents a light switch approach to storage networking that, carried to its logical conclusion, purges Fibre Channel from the notion of SANs. Like iFCP, iSCSI takes IP to the storage end device. Unlike iFCP, iSCSI defines its own serial SCSI implementation for block data transfer ...

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