Method for designing multi-controller memory array

Abstract

The invention provides a method for designing a multi-controller memory array. In the method, more than two controllers are arranged in a system to monitor the states of failover and a hot plugging function in real time, and the system performance is approximately linearly improved with the increase of the number of the controllers. A module adopted in the designing process comprises a controller unit, a switching unit, a data caching unit, a memory cell and a power supply radiating unit, wherein the data caching unit is an independent functional unit not attached to the controllers; interconnectivity and sharing are realized between the controller unit and the caching unit through a high-speed network unit and various configuration management and status information; and flexible configuration can be performed, such as adding or deleting components in the system on line, and the like. The flexibility is embodied in that the caching unit is independent from the controllers to organize an independent memory space, and access control is performed through a network interconnection unit, so the design difficulty of the system is improved, and the reliability is increased.

Description

technical field [0001] The invention relates to a computer application technology, in particular to a highly reliable and high-performance multi-controller storage array architecture design method. Background technique [0002] The storage disk array system is developed with the development of computer technology, especially with the increasing scope of information application and the rise of Internet technology, the data carrying capacity is increasing, and the disk array technology is also moving towards large capacity and high reliability. direction development. The initial form of disk array was low-end DAS (Direct Attached Storage) products. With the development of technology and business needs, SAN (Network Storage) gradually entered the mainstream application. Compared with DAS products, SAN devices are more intelligent, easy to manage, high performance, It supports more high-end application features, and its application is more flexible. [0003] Regardless of whet...

AI Technical Summary

Problems solved by technology

[0006] In a multi-controller system, if the controllers are still used to add their own buffers, the utilization rate of the buffer pool on each controller will be greatly reduced, the data communication load between the controllers will be greatly increased, and the distribution strategy of the data cache will also be reduced. It is more complicated, and the traditional dual-controller design method is no longer suitable for the multi-controller storage architecture method

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