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

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...

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

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