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Redundancy method and system of storage sites based on interconnection, and storage medium

A redundant system and site technology, applied in the computer field, can solve problems such as business interruption, and achieve the effect of ensuring no loss, ensuring no business interruption, and avoiding data loss

Inactive Publication Date: 2020-02-21
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, business will be interrupted

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  • Redundancy method and system of storage sites based on interconnection, and storage medium
  • Redundancy method and system of storage sites based on interconnection, and storage medium

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Embodiment Construction

[0034] The core of the present invention is to provide a redundant method based on interconnected storage sites, which avoids data loss caused by failure of two sites and ensures uninterrupted operation of services at the same time. .

[0035] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. 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.

[0036] Please refer to figure 1 , figure 1 It is an implementation flowchart of a redundancy method based on interconnected storage sites in the present invention, and the r...

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Abstract

The invention discloses a redundancy method of storage sites based on interconnection. The method is applied to any storage site in N interconnected storage sites, and comprises the following steps: after receiving a creation instruction, creating a logic unit with the same size, the same logic unit identifier, the same manufacturer ID and the same product ID in each of the N storage sites, so that the N logic units form a virtual logic unit; wherein N is a positive integer not less than 3; when to-be-written data sent by the host is received based on the virtual logic unit, writing the to-be-written data into a local logic unit and sending the to-be-written data to other non-faulty storage sites; and after each non-fault storage site completes writing of the to-be-written data, respondingto the host end to complete a writing process. By applying the method of the invention, data loss caused by site faults is avoided, and meanwhile, uninterrupted operation of services is ensured. Theinvention further provides a redundancy system of the storage sites based on interconnection, and a storage medium, which have corresponding effects.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a redundant method, system and storage medium based on interconnected storage sites. Background technique [0002] A SAN (Storage Area Network, storage area network) storage system can provide block storage services through FCP, iSCSI and other networks and protocols. For a single system, reliability can generally be improved through controller redundancy and RAID (Redundant Arrays of Independent Drives, Redundant Array of Independent Disks). [0003] Further, in order to avoid failure of a single site, current SAN storage systems generally support redundant mirroring between two sites, thereby providing disaster recovery protection. In some occasions, the remote asynchronous replication of the third site will be further added to enhance disaster recovery protection. However, if two sites of the redundant mirror fail simultaneously, some data may be lost because the data may ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0619G06F3/0622G06F3/065G06F3/067
Inventor 施培任孟宪伟胡正建
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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