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A SCST -based dual -control cache synchronization design method

A design method and caching technology, applied in the direction of input/output to record carrier, etc., can solve the problems of single point of failure of a single storage controller, affecting reliable storage of data, etc., to achieve easy promotion, meet throughput requirements, and ensure security and reliability effects

Active Publication Date: 2017-09-22
SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a single storage controller has a single point of failure, which affects the reliable storage of data

Method used

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  • A SCST -based dual -control cache synchronization design method
  • A SCST -based dual -control cache synchronization design method
  • A SCST -based dual -control cache synchronization design method

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Embodiment Construction

[0040] A SCST-based dual-control buffer synchronization design method provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] The present invention proposes a SCST-based dual-control cache synchronization design method, and the module needs to be combined with the SCST to realize data cache synchronization. The present invention will be used in storage controllers, and the scheme needs to design a synchronization mechanism and a synchronization algorithm to maintain data consistency between two controllers. The solution includes two modules, the cache pool module Mempool and the synchronization module Syc Module, which mainly design the transfer data structure, synchronization algorithm and synchronization strategy.

[0042] as attached figure 1 As shown, the method is implemented through the following steps:

[0043] Connect the client computer to two identical storage controllers A and B, set SCST cache ar...

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Abstract

The invention provides a dual-control cache synchronization design method based on SCST. The specific implementation process is as follows: connecting a client to two identical storage controllers A and B, and setting SCST buffer areas and buffers in both storage controllers. Pool module and synchronization module, both storage controllers are connected to the disk array; when client data is input to one storage controller, the data in the storage controller is backed up to another storage controller to achieve cache synchronization in the two storage controllers ; then write the data from the storage controller to the disk array. Compared with the prior art, the SCST-based dual-control cache synchronization design method can realize the backup storage of the storage controller data, the cache data can realize the synchronization of multiple physical transmission media, and meet the throughput requirements of the massive array storage system. Strong and easy to promote.

Description

technical field [0001] The invention relates to the technical field of computer server storage, in particular to an SCST-based dual-control buffer synchronization design method. Background technique [0002] With the rapid development of computer technology and network technology, the reliability of data storage has gradually been paid attention to. The current storage methods mostly use relatively expensive disks to form a large-capacity disk group. With the design of scattered data arrangement, the data is divided into different sections and stored separately, thus forming a disk array. In this way, the reliability bottleneck of the system is the disk array controller. The current method can use multi-channel disk array controllers to share the disk array, which can not only increase the reliability of the array system, but also store data externally through the multi-channel controller. services, improving storage efficiency. [0003] At present, in the SCST-based netwo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 张凡凡吴登勇李保来
Owner SHANDONG CHAOYUE DATA CONTROL ELECTRONICS CO LTD