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Multi-control multi-activity storage system

A storage system and multi-controller technology, applied in the field of multi-control and multi-active storage systems, can solve the problems of multi-controller and back-end disk resources that cannot be realized, and improve access concurrency, efficiency, and data access efficiency. Effect

Inactive Publication Date: 2013-05-15
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Problems solved by technology

But when the number of controllers exceeds 2, the management of multiple controllers and back-end disk resources cannot be realized by using direct interconnection, and a new module must be used

Method used

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Embodiment Construction

[0016] The system of the present invention will be described in detail below with reference to the accompanying drawings.

[0017] In view of this, the present invention provides a data transmission method and system, wherein an originating controller sends data in a specific format to be synchronized to a data switch, and the data switch forwards the data in a specific format to be synchronized to a destination controller. Through this data transmission module, various system information such as controller status, controller cache, and back-end storage are transferred between controllers to realize system synchronization, service takeover, and global cache, providing a physical basis for high availability of the system.

[0018] The specific design steps are as follows:

[0019] The system includes: controller data interconnection module, redundant back-end storage interconnection module, global shared cache module and data lock management mechanism, among which:

[0020] Th...

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Abstract

The invention provides a multi-control multi-activity storage system. In the aspect of hardware, a multi-control multi-activity storage system hardware module is constructed. A module design is adopted in each main component. Controller data interconnection modules and at least two data switching exchangers are connected through redundant data links and the data switching exchangers are all in an active state. The controller data interconnection modules and each data switching exchanger all have independent data links. The communication method includes that the controller data interconnection modules enable data with to-be-sent specific forms to be distributed to the data switching exchangers which are connected and respectively send data which are provided with specific forms and are distributed to part of systems of the data switching exchangers to each data switching exchanger. An active-active mutual preparation state is between the controller data interconnection modules, an active-active mutual preparation state is also between the data switching exchangers, and the redundant design among multiple interface modules is adopted to ensure that single-point faults do not exist.

Description

technical field [0001] The invention relates to the field of computer applications, in particular to a multi-control and multi-active storage system. Background technique [0002] Traditional storage array devices can be divided into single-controller storage devices and dual-controller storage devices according to the number of controllers. [0003] In the dual-controller array, the interconnection of the controllers is only through the network interface communication of the two controllers; the management of the back-end disk resources also uses dual links. However, when the number of controllers exceeds 2, the management of multiple controllers and back-end disk resources cannot be realized by using direct interconnection, and a new module must be used. [0004] There are multiple communication links between multiple controllers in this patent, and the multi-control storage module can realize the design of multi-controller storage and the unified management of the back-e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 王恩东葛峰李素叶
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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