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Method for transmitting small computer system interface (SCSI) packet and device thereof

A small computer and interface technology, applied in the field of communication, can solve problems affecting data storage rate, network congestion data, and large instantaneous peak value of network traffic, so as to avoid network congestion, ensure storage performance, and reduce the impact of instantaneous traffic.

Inactive Publication Date: 2009-11-04
NEW H3C TECH CO LTD
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Problems solved by technology

[0008] In summary, in the SCSI packet transmission scheme proposed in the prior art, when the SCSI packet sent by the initiator through the network port is relatively large, the instantaneous peak value of the network traffic will be too large, and cause network congestion and data loss; the initiator limit The size of the SCSI packet, when sending smaller SCSI packets, will affect the rate of data storage

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  • Method for transmitting small computer system interface (SCSI) packet and device thereof
  • Method for transmitting small computer system interface (SCSI) packet and device thereof
  • Method for transmitting small computer system interface (SCSI) packet and device thereof

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Embodiment Construction

[0051] In the technical solution provided by the present invention, its core idea is that the SCSI packet is split into at least two SCSI subpackages by the application server, and the plurality of SCSI subpackages obtained by splitting are encapsulated into corresponding two-layer messages respectively, and the The two-layer message is sent to the storage device in turn, and the interval time (for example, 2 milliseconds) for sending the two-layer message is set; the storage device side decapsulates the received two-layer message into a SCSI sub-packet, and corresponds to the SCSI package. All SCSI subpackages of the system are combined into SCSI packets, and the SCSI packets are sent to its own storage resources for read and write processing, which not only reduces the pressure on the instantaneous traffic of the network, but also reduces the read and write time of processing data.

[0052] The technical solutions of the present invention will be clearly and completely descri...

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Abstract

The invention discloses a method for transmitting small computer system interface (SCSI) packet. The method is applied to a system comprising an application server and a memory device. The method comprises the following steps: the application server splits the SCSI packet to be transmitted into at least two SCSI subpackets; the application server respectively encapsulates the obtained SCSI subpackets to a corresponding message in layer 2; the application server transmits the message in layer 2 to the memory device by a network interface and allows the memory device to convert the message in layer 2 into the SCSI subpackets and combine the SCSI subpackets to from the SCSI packet and perform read-write operation according to the SCSI packet obtained by combination. The method helps reduce impact on instantaneous network traffic, thus avoiding network congestion and ensuring memory property of the memory device. The invention also discloses a device for applying the method.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and a device for transmitting SCSI packets of a small computer system interface. Background technique [0002] With the advent of the information age, the collection and processing of information has become a key factor that determines the survival and development of modern enterprises. Most enterprises directly access storage devices through the iSCSI (Internet Small Computer System Interface) protocol to realize data batches. Encapsulation and reliable transport. [0003] The iSCSI protocol is a protocol for data block transmission on an IP (Internet Protocol, Internet Protocol) network, especially on an Ethernet, and has become a standard protocol of a new generation of storage technology. The iSCSI protocol can realize the function of running SCSI (Small Computer System Interface, small computer system interface) protocol and applying SCSI on the IP network, m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/56H04L12/70
Inventor 夏飞周迪
Owner NEW H3C TECH CO LTD
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