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Internet Small Computer Systems Interface or iSCSI (/ aɪ ˈ s k ʌ z i / ⓘ eye-SKUZ-ee) is an Internet Protocol-based storage networking standard for linking data storage facilities. iSCSI provides block-level access to storage devices by carrying SCSI commands over a TCP/IP network. iSCSI facilitates data transfers over intranets and to manage storage over long distances.
FCoE operates on top of the data link layer in the OSI model which contrasts with most other well-known protocols that may use Ethernet, such as (for a storage-related example) iSCSI, which runs on top of TCP over IP. As a consequence, FCoE is not routable at the IP layer and will not work across routed IP networks such as the Internet.
Fibre Channel over IP (FCIP), contrast with Internet Fibre Channel Protocol (iFCP) Gen 5 Fibre Channel; Host Bus Adapter (HBA) Interconnect bottleneck; FATA, IDE, ATA, SATA, SAS, AoE, SCSI, iSCSI, PCI Express; IP over Fibre Channel (IPFC) N_Port ID Virtualization; World Wide Name
This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, at which digital interfaces in a computer or network can communicate over various kinds of buses and channels.
A storage area network (SAN) or storage network is a computer network which provides access to consolidated, block-level data storage.SANs are primarily used to access data storage devices, such as disk arrays and tape libraries from servers so that the devices appear to the operating system as direct-attached storage.
Fibre Channel over IP (FCIP or FC/IP, also known as Fibre Channel tunneling or storage tunneling) is a protocol created by the Internet Engineering Task Force (IETF) for storage technology. An FCIP entity encapsulates Fibre Channel frames using TCP segments and forwards them over an IP network to another FCIP entity which decapsulates them and ...
iSNS provides management services similar to those found in Fibre Channel networks, allowing a standard IP network to operate in much the same way that a Fibre Channel storage area network does. Because iSNS is able to emulate Fibre Channel fabric services and manage both iSCSI and Fibre Channel devices, an iSNS server can be used as a ...
As noted above, one of the drivers behind enhancing Ethernet is to support storage traffic. While iSCSI was available, it depends on TCP/IP and there was a desire to support storage traffic at layer 2. This gave rise to the development of the FCoE protocol, which needed reliable Ethernet transport.