SCSI protocol


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SCSI protocol

The communications protocol and command set of the SCSI interface. SCSI commands are not only used to drive SCSI interfaces but for Fibre Channel and PCI Express as well. See SCSI and SCSI Architecture Model.
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The Internet Engineering Task Force (IETF) has focused on IP storage networking through the iSCSI (Internet SCSI), which is developing standards for running the SCSI protocol over TCP/IP, and through two subgroups developing standards for encapsulating Fibre Channel frames for transmission over TCP/IP.
Additionally the SCSI protocol supports multi-initiators allowing multiple servers to simultaneously address the same drive representing a true "cluster" environment.
Some Serial ATA proponents predict that SATA II Extensions will ultimately replace the SCSI protocol, a highly unlikely outcome since SCSI's robustness for enterprise applications comes from 20 years of industry investment.
* Serial SCSI Protocol (SSP) supports full duplex connections to SAS devices.
The native SCSI protocol (SSP) support for SAS devices.
The inside category consists of three protocols: SMP (Serial Management Protocol), SSP (Serial SCSI Protocol), and STP (SATA Tunneled Protocol).
Currently the Auditor software provides analysis of Fibre Channel and Serial Attached SCSI protocols. EAS was founded in 2003 and has its headquarters in Florence, Texas.
And because SCSI protocols are not restricted to half-duplex operation, SAS will also support full-duplex transfers, allowing data to be transferred simultaneously in both directions to maximize bandwidth.
In fact, the Scalar 10K is the only integrated library system that can support arbitrated loop, switched fabric, and SCSI protocols at the same time -- even providing simultaneous support for different switched fabrics from different vendors.