IP storage

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IP storage

(Internet Protocol storage) Using the IP protocol to connect storage area networks (SANs) in remote locations. SANs can be extended across metropolitan area networks (MANs) and wide area networks (WANs) without distance limitations.

For Fibre Channel (FC) SANs, protocols are used to tunnel FC frames within IP packets (FCIP) or convert frames to packets (iFCP) to ride over IP. For non-Fibre Channel SANs, the iSCSI protocol converts SCSI data to IP packets. See FCIP, iFCP and iSCSI.

Fibre Channel vs. iSCSI
Traditional SANs were developed using the Fibre Channel transport, because it provided gigabit speeds compared to Ethernet at 10 and 100 Mbps. When Gigabit Ethernet arrived, it became possible to interconnect FC switches over IP/Ethernet networks. For organizations without Fibre Channel, iSCSI provides a lower-cost alternative. In the large enterprise, both Fibre Channel SANs and iSCSI SANs (IP SANs) are used. See SAN.

IP Storage Switch
This Nishan Systems switch converts Fibre Channel to IP. Other Nishan products support SANs with SCSI, Fibre Channel, iSCSI and iFCP devices. Nishan was acquired by McData and then Brocade. (Image courtesy of Nishan Systems.)
References in periodicals archive ?
Like many storage over IP technologies, iSCSI uses TCP for moving data between application endpoints.
Deploying an optical network can also prepare your business for future applications such as storage over IP or any of the up-and-coming storage or data-movement related protocols (iSCSI, FCIP, SoIP, VIA, InfiniBand, etc).
The Cisco SN 5420 Storage Router allows universal access to pools of Fibre Channel storage over IP networks.
From a user perspective, network administrators have been waiting impatiently for this development, and storage administrators are relieved that storage over IP implements pre-existing infrastructures.
Well-known connectivity technologist Tom Clark followed up with a presentation on Storage over IP, highlighting the vision of Nishan Systems (See a discussion of Nishan's new products on p.
developer of next-generation Storage over IP (SoIP) technology, has introduced a new class of wire-speed native IP storage switches and a suite of sophisticated storage management software to configure and monitor large-scale storage networks.
The Cisco/Brocade announcement was made hard upon the announcement of a financing round for startup Nishan Systems, a company committed to developing "Storage over IP." The startup hopes to combine the best features of first-generation SANs' high availability and performance with the best features of IP networks, product compatibility, established standards, and scalability.
Nishan and its partners will introduce Storage over IP (SoIP), in which the startup hopes to combine the best features of first-generation SANs--high availability and performance--with the best features of IP networks--product compatibility, established standards, and scalability.
They call it Storage over IP (SoW) and it enables IT management to run storage traffic over their existing IP network, (topologically similar to a NAS approach) or a separate dedicated IP network .

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