Internet technology, based on IP, is replacing a wide-range of specialized networking solutions, including leased lines, proprietary network architectures (e.g. IPX), and so on. IP-based solutions are more cost-effective, support wider range of connectivity and are familiar to a huge pool of network administrators, managers and engineers. This paper discusses various approaches to accessing storage over IP networks. In particular, the paper discusses an approach for accessing storage using the SCSI protocol layered over TCP/IP, called iSCSI. The paper discusses the pros and cons of such an approach versus alternative schemes for storage access.
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