HyperSCSI
Encyclopedia
HyperSCSI was a computer network protocol for accessing storage by sending and receiving SCSI command
s.
It was developed by researchers at the Data Storage Institute
in Singapore
in 2000 to 2003.
HyperSCSI is unlike iSCSI
in that it bypassed the internet protocol suite
(TCP/IP) and works directly over Ethernet
to form its Storage area network
.
It skipped the routing, retransmission, segmentation, reassembly, and all the other problems that the TCP/IP suite addresses. Compared to iSCSI, this was meant to give a performance benefit at the cost of IP's flexibility. An independent performance test showed that performance was unstable with network congestion.
The similar ATA over Ethernet
technology was based on a cheap technology. Since HyperSCSI was in direct competition with the older and well established Fibre Channel
, and the standardized iSCSI, it was not adopted by commercial vendors. Some researchers at Huazhong University of Science and Technology
noted the failure to provide any transport layer
protocol, so implemented a reliability layer in 2007.
Another version called HS/IP was developed over the Internet Protocol (IP).
SCSI command
In SCSI computer storage, a command is the basic unit of communication. The SCSI command architecture was originally defined for parallel SCSI buses but has been carried forward with minimal change for use with Fibre Channel, iSCSI and Serial Attached SCSI....
s.
It was developed by researchers at the Data Storage Institute
Data Storage Institute
The Data Storage Institute is a national research and development organisation located in Singapore, where data storage technologies are being studied...
in Singapore
Singapore
Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...
in 2000 to 2003.
HyperSCSI is unlike iSCSI
ISCSI
In computing, iSCSI , is an abbreviation of Internet Small Computer System Interface, an Internet Protocol -based storage networking standard for linking data storage facilities. By carrying SCSI commands over IP networks, iSCSI is used to facilitate data transfers over intranets and to manage...
in that it bypassed the internet protocol suite
Internet protocol suite
The Internet protocol suite is the set of communications protocols used for the Internet and other similar networks. It is commonly known as TCP/IP from its most important protocols: Transmission Control Protocol and Internet Protocol , which were the first networking protocols defined in this...
(TCP/IP) and works directly over Ethernet
Ethernet
Ethernet is a family of computer networking technologies for local area networks commercially introduced in 1980. Standardized in IEEE 802.3, Ethernet has largely replaced competing wired LAN technologies....
to form its Storage area network
Storage area network
A storage area network is a dedicated network that provides access to consolidated, block level data storage. SANs are primarily used to make storage devices, such as disk arrays, tape libraries, and optical jukeboxes, accessible to servers so that the devices appear like locally attached devices...
.
It skipped the routing, retransmission, segmentation, reassembly, and all the other problems that the TCP/IP suite addresses. Compared to iSCSI, this was meant to give a performance benefit at the cost of IP's flexibility. An independent performance test showed that performance was unstable with network congestion.
The similar ATA over Ethernet
ATA over Ethernet
ATA over Ethernet is a network protocol developed by the Brantley Coile Company, designed for simple, high-performance access of SATA storage devices over Ethernet networks. It is used to build storage area networks with low-cost, standard technologies.- Protocol description :AoE runs on layer 2...
technology was based on a cheap technology. Since HyperSCSI was in direct competition with the older and well established Fibre Channel
Fibre Channel
Fibre Channel, or FC, is a gigabit-speed network technology primarily used for storage networking. Fibre Channel is standardized in the T11 Technical Committee of the InterNational Committee for Information Technology Standards , an American National Standards Institute –accredited standards...
, and the standardized iSCSI, it was not adopted by commercial vendors. Some researchers at Huazhong University of Science and Technology
Huazhong University of Science and Technology
The Huazhong University of Science and Technology is a public, coeducational research university located in Wuhan, Hubei province, China. As a national key university, HUST is directly affiliated to the Ministry of Education of China. HUST has been referred as the flagship of China's higher...
noted the failure to provide any transport layer
Transport layer
In computer networking, the transport layer or layer 4 provides end-to-end communication services for applications within a layered architecture of network components and protocols...
protocol, so implemented a reliability layer in 2007.
Another version called HS/IP was developed over the Internet Protocol (IP).
See also
- Fibre Channel over EthernetFibre Channel over EthernetFibre Channel over Ethernet is an encapsulation of Fibre Channel frames over Ethernet networks. This allows Fibre Channel to use 10 Gigabit Ethernet networks while preserving the Fibre Channel protocol...
- Fibre Channel over IPFibre Channel over IPFibre Channel over IP , is an Internet Protocol was created by the Internet Engineering Task Force as storage technology....
- Internet Fibre Channel ProtocolInternet Fibre Channel ProtocolInternet Fibre Channel Protocol is a gateway-to-gateway network protocol standard, officially ratified by the Internet Engineering Task Force, which provides Fibre Channel fabric functionality to fibre channel devices over an IP network...