Control method of system interface iSCSI receiving end window of internet small computer and device

A small computer and control method technology, applied in transmission systems, store-and-forward switching systems, electrical components, etc., can solve problems such as waste of back-end resources, failure to receive, and impact on reading and writing data services, so as to improve resource utilization, Realize load balancing and ensure timely processing effect

Active Publication Date: 2009-06-03
UNITED INFORMATION TECH H K COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. If the window setting is too small, the resource utilization rate of the iSCSI receiving end will be low, which will cause a waste of back-end resources; and, because many PDUs sent by the iSCSI sending end cannot be received, the iSCSI sending end cannot receive the response from the iSCSI receiving end, and will Causes the iSCSI sender to retransmit multiple PDUs multiple times, increasing the processing pressure on the protocol processing front end of the iSCSI receiver
[0007] 2. If the window setting is too large, the resources of the iSCSI receiving end will be tight, which may cause a delay in the processing of SCSI commands. The iSCSI sending end will not receive the response from the iSCSI receiving end. The iSCSI sending end will resend the PDU, forming a vicious circle and affecting the read and write data services
[0008] 3. For different sessions, the network environment and business types are quite different. Using a fixed window size will cause unbalanced load processing on each session

Method used

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  • Control method of system interface iSCSI receiving end window of internet small computer and device
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  • Control method of system interface iSCSI receiving end window of internet small computer and device

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Embodiment Construction

[0045] The inventor considers that, as the front end of the storage device, the size setting of the session window has a great influence on the efficiency of data reading and writing, and the setting of the session window is related to the load situation of the current iSCSI receiving end and the business type. There is a great connection, and the two are constantly changing during system operation, so an Internet small computer system interface iSCSI receiving end window control method is provided in an embodiment of the present invention to improve the resource utilization rate of the iSCSI receiving end, iSCSI The access rate of the sender.

[0046]Two types of windows are involved in the embodiment of the present invention: SCSI windows and session windows. After the iSCSI receiving end receives the iSCSI PDU sent by the iSCSI sending end, it parses the iSCSI PDU to obtain SCSI commands and data, and caches the SCSI commands in the SCSI window for backend processing; each ...

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PUM

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Abstract

The invention discloses a control method of a system interface iSCSI receiving end window of an internet small computer, comprising the following steps of: monitoring the state of a system interface SCSI receiving end window of the small computer; and controlling the size of a session window according to the change of the state of the SCSI window when detecting that the state of the SCSI window occurs change. The invention discloses a control device of the iSCSI receiving end window simultaneously. The invention can improve the resource utilization rate of the iSCSI receiving end and the access rate of the iSCSI receiving end.

Description

technical field [0001] The invention relates to the technical field of computer storage, in particular to a method and device for controlling a window at a receiving end of an interface of an Internet small computer system. Background technique [0002] The iSCSI (Internet Small Computer System Interface, Internet Small Computer System Interface) protocol is developed by the IETF (Internet Engineering Task Force, Internet Engineering Task Force) based on the Internet TCP / IP (Transmission Control Protocol / Internet Protocol, transmission control protocol / Internet Connect protocol) network storage protocol. It transmits SCSI (Small Computer System Interface, small computer system interface) packets through the existing TCP / IP protocol, which solves the problem of limited SCSI transmission distance. The iSCSI sender (Initiator) encapsulates SCSI commands and data into TCP / IP packets and forwards them through the network. After the iSCSI receiver (Target) receives the TCP / IP pac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/54H04L47/27
Inventor 雷伟
Owner UNITED INFORMATION TECH H K COMPANY
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