Designing method of global-cache-sharing tight coupling multi-control multi-active storage system

A technology of global sharing and storage system, applied in the design field of tightly coupled multi-controller and multi-active storage system, can solve the problems of multi-controller and back-end disk resources cannot be realized, and achieve the effect of good scalability

Inactive Publication Date: 2013-09-25
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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However, when the number of controllers exceeds 2, the management of multiple controllers and back-end d

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  • Designing method of global-cache-sharing tight coupling multi-control multi-active storage system
  • Designing method of global-cache-sharing tight coupling multi-control multi-active storage system
  • Designing method of global-cache-sharing tight coupling multi-control multi-active storage system

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

[0017] The implementation of the method can be executed according to the following steps:

[0018] In terms of hardware, a multi-controller and multi-active storage system hardware architecture is built. Each main component adopts a modular design. The controller and at least two data switches are connected through redundant data links, and the data switches are in an active state. The control and each data switch have an independent data link, and the communication mode is that the controller allocates the data in a specific format to be sent to the connected data switch, and sends the data to each data switch to the data switch. Part of the system-specific format data. The controller and the controller are in the active-active mutual backup state, and the data switch is also in the active-active mutual backup state.

[0019] The controller is connec...

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Abstract

The invention provides a designing method of a global-cache-sharing tight coupling multi-control multi-active storage system. The system utilizes a multi-layer system high-availability mechanism. A component layer supports on-line redundancy configuration of controllers, a power supply, a radiating module and other parts. In the situation that the damage fault of all modules is 50 percent, the system can still be used normally. The bi-directional annular heartbeat algorithm is utilized by a system software layer, and each controller node sends heartbeat information to the pre-controller and the post-controller of the controller at the same time. As the number of the controllers is increased, the calculated loads of the heartbeat of each node are fixed, bi-directional annular heartbeats can faster find that multiple continuous nodes lose effect and have good expandability.

Description

technical field [0001] The invention relates to the technical field of computer applications, in particular to a design method of a tightly coupled multi-controller and multi-active storage system with global shared cache. 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 architecture must be adopted. Compared with the traditional method of multi-control storage front-end service controller-cache controller-back-end controller, this paten...

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Application Information

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IPC IPC(8): H04L29/08H04L12/937G06F11/16
Inventor 王恩东文中领葛峰
Owner LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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