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Data transmission scheduling method, system and device for IP SAN storage

A data transmission and storage device technology, applied in the field of network communication, can solve the problems of discarded data, limited cache space, not taken away, etc., and achieve the effect of reducing the probability of packet loss

Inactive Publication Date: 2011-07-06
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, this method may not be able to guarantee the data storage requirements of these channels when the data volume of some channels is large, the reliability of data transmission is high, or the business needs to be stored first.
For example: a certain channel has a large amount of data, but the cache space is limited, and the transmission of data according to the received order may cause the data of this channel in the cache space to be stored before being taken out, which may cause cache Data dropped due to insufficient space

Method used

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  • Data transmission scheduling method, system and device for IP SAN storage
  • Data transmission scheduling method, system and device for IP SAN storage
  • Data transmission scheduling method, system and device for IP SAN storage

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] In order to facilitate the understanding and description of the present invention, firstly a brief description is given of the flow of data transmission after the iSCSI connection is established between the storage front-end server and the IP SAN storage device in the prior art. Such as figure 2 As shown, the iSCSI protocol client in the storage front-end server first sends an iSCSI write request to the IP SAN storage device for the data to be written (the type identifier of the message in the existing iSCSI protocol is 0x01), and the iSCSI write request includes the required The channel information corresponding to the written data; after the iSCSI protocol target end in the IP SAN storage device receives the SCSI write request, if it is ...

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Abstract

The invention provides a data transmission scheduling method, a system and a device for IP storage area network (SAN) storage, wherein the method comprises setting sub cache on a storage front end server end aiming at each channel, setting priority for each channel according to actual requirements, extracting data from the sub cache of each channel according to the priority of each channel and according to a preset priority strategy, and sending internet small computer system interface (iSCSI writing request) aiming at each data and according to extracting sequence, or setting request list aiming at each channel on an IP SAN storage device end, setting priority for each channel according to actual requirements, and extracting iSCSI writing request from the request list of each channel according to the priority of each channel and according to the preset priority strategy, and answering each iSCSI writing request and getting ready for receiving response according to the extracting sequence, thereby satisfying different data storage requirements of each channel.

Description

technical field [0001] The invention relates to network communication technology, in particular to a data transmission scheduling method, system and equipment for IP SAN storage. Background technique [0002] IP Storage Area Network (SAN, Storage Area Network) allows a direct high-speed connection between the storage device and the server to transmit data from the server to the storage device for storage. The Internet Small Computer System Interface (iSCSI, internet Small Computer System Interface) is based on The SCSI transmission protocol of the internet, through which the data transmission between the server and the storage device can be realized. This IP SAN storage model has been widely used in fields such as video surveillance storage, database storage, and file storage. [0003] figure 1 It is a schematic structural diagram of an IP SAN storage model in the prior art, such as figure 1 As shown, the storage front-end server can receive data streams from multiple cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/06H04L47/6275
Inventor 杨西平苏佳周迪
Owner NEW H3C TECH CO LTD
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