Multi-control and multi-activity RAID synchronization method and system

A technology for synchronizing systems and synchronizing data, applied in transmission systems, instruments, electrical digital data processing, etc., and can solve problems such as IO performance degradation

Active Publication Date: 2017-10-10
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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However, data synchronization between multiple con

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  • Multi-control and multi-activity RAID synchronization method and system
  • Multi-control and multi-activity RAID synchronization method and system
  • Multi-control and multi-activity RAID synchronization method and system

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] The embodiment of the present invention discloses a multi-control and multi-active RAID synchronization method, see figure 1 and figure 2 As shown, the method includes:

[0033] Step S11: the target master RAID node receives the lock request of the target RAID.

[0034] Specifically, the target master RAID node creates a listening socket and starts a listening service, so as to receive the lock request of the target RAID.

[0035] Wherein, the targe...

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Abstract

The invention discloses a multiple-control and multiple-activity RAID synchronization method and system. The method comprises the steps that main target RAID nodes receive lock request of a target RAID; the main target RAID nodes utilize the lock request to search for target strips and determines whether or not the target strips are occupied; if not, the main target RAID nodes send authorization information to the target RAID; the target RAID locks the target strips to facilitate data synchronization among RAID, wherein each main target RAID node includes RAID with the same ID as the target RAID and is any one of K main target RAID nodes, and the main target RAID nodes are responsible for lock requests of RAID with different IDs. According to the multiple-control and multiple-activity RAID synchronization method and system, by distributing different main target RAID nodes in different RAID nodes, the lock requests of RAID with different IDs can be dispersed on multiple RAID nodes; the communication for the lock request is conducted between the target RAID and the main target RAID nodes, so that the situation is avoided that a large number of lock requests are produced, the consistency of RAID data is ensured, and the efficiency of IO is guaranteed.

Description

technical field [0001] The invention relates to the field of computer storage and counting, in particular to a multi-control and multi-active RAID synchronization method and system. Background technique [0002] In the storage system, there are single-control systems, dual-control systems, and multi-control systems. Single control system, that is, the whole system has only one node, which is relatively simple. In order to improve the reliability and IO performance of the system, cluster systems such as dual-controller and multi-controller have emerged. That is, there are multiple nodes in the entire storage system or in one chassis. The greater the number of controllers, the more complex the system. The RAID (Redundant Arrays of Independent Disks) technology is more complicated in a multi-control system. In a multi-control system, RAID must not only ensure data consistency, but also ensure high IO efficiency. In order to ensure data consistency, multiple controllers nee...

Claims

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Application Information

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IPC IPC(8): G06F3/06H04L29/08
CPCG06F3/0611G06F3/0646G06F3/0689H04L67/1095
Inventor 侯英利张永锋姜怡坤
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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