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Advantages of iSCSI

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Advantages of iSCSI

Postby guest » Wed Nov 19, 2008 7:07 pm

• Connectivity over long distances - iSCSI over wide area networks (WANs) provides a cost-effective long distance connection that can be used as a bridge to existing Fibre Channel SANs (FC SANs)—or between native iSCSI SANs—using in-place metropolitan area networks (MANs) and WANs.

• Lower costs - iSCSI enables transmission of SCSI block commands over the existing IP network by using the TCP/IP protocol.

• Simpler implementation and management - with the Microsoft iSCSI initiator on the host server, setup iSCSI requires little more than the installation of a target iSCSI storage device, and a Gigabit Ethernet switch.

• Built-in security - Unlike Fibre Channel protocol, iSCSI security can be implemented primarily through limiting physical access to the SAN. The Microsoft implementation of the iSCSI protocol provides security for devices on the network by using the Challenge Handshake Authentication Protocol (CHAP) for authentication and the Internet Protocol security (IPSec) standard for encryption. Currently, iSCSI targets are implementing CHAP, but have not yet implemented more advanced methods.

• Optimized performance - Windows also provides Quality of Service (QoS) mechanisms to ensure that that network connectivity and performance are optimized
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