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Storage system, and data processing method and controller of link circuit of disc in same

A technology for storage systems and controllers, applied in digital data processing, hardware redundancy for data error detection, instruments, etc., can solve problems such as storage system failure, business inoperability, and system business impact, and improve reliability effect

Active Publication Date: 2010-05-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if two controllers belonging to a certain CNP fail at the same time, all disks belonging to the CNP cannot be accessed. Therefore, when a CNP fails, it will directly affect the entire system business, which will lead to the paralysis of the entire storage system, and the business cannot run

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  • Storage system, and data processing method and controller of link circuit of disc in same
  • Storage system, and data processing method and controller of link circuit of disc in same
  • Storage system, and data processing method and controller of link circuit of disc in same

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Embodiment Construction

[0034] 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 creative efforts fall within the protection scope of the present invention.

[0035] see figure 1 , which is a schematic diagram of a disk networking mode of an existing storage system. A1-B1, A2-B2...An-Bn represents the controller pair (CNP) in the storage system; the data switching center (DSC, DATA SWITCH CENTER) mainly completes the data exchange between each controller, each Multiple disk enclosures (DE, DISK ENCLOSUER) are usually cascaded under a CNP (An-Bn), so as to complete the large-capacity characteristics of storage. The disk...

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Abstract

The invention discloses a storage system, and a data processing method and a controller of a link circuit of a disc in the same. The storage system comprises at least two disc frame sets, at least two CNPs and a data switching center, wherein the head of each disc frame set is connected with one CNP, and the tail is connected with the other CNP; the first set of interfaces of each CNP are connected to the head of one disc frame set, the second set of interfaces are connected to the tail of the other disc frame set, and each CNP accesses all disc frames in the disc frame set and disc data in the disc frames through the disc frame set connected with the CNP; if the CNP connected to the head of one disc frame set is in failure, the CNP connected to the tail of the disc frame set takes over the disc frame set to access all disc frames in the took-over disc frame set and the disc data in the disc frames; and the data switching center is used for switching the data between the CNPs. The reliability of disc access at the back terminal of multi-control storage system is enhanced by applying the invention.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a storage system and a data processing method and controller for disk links in the system. Background technique [0002] At present, in the storage system, multiple controllers are mostly used to implement. Every two controllers form a controller pair (CNP, Controller Node Pair). Each CNP is connected to a disk enclosure. The back end of the existing storage system is a disk enclosure. , to expand the storage capacity by cascading disk enclosures. [0003] The data switching center (DSC, DATA SWITCH CENTER) in the existing storage system mainly completes the data exchange between each controller, and usually multiple disk enclosures (DE, DISK ENCLOSUER) are cascaded under each CNP to complete the storage Features of large capacity. The two controllers in each CNP are independent of each other and are mutually redundant, and perform operations such as handshaking and synchr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/16G06F13/16
Inventor 赵行伦
Owner HUAWEI TECH CO LTD
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