Software and hardware cooperative multi-controller disk array designing method

A software-hardware collaboration and multi-controller technology, which is applied in the direction of hardware redundancy for data error detection and response error generation, can solve problems such as blocking data read and write requests, service interruption, and affecting stable operation of applications. Achieve the effect of improving system reliability, reliable judgment and processing, and good scalability
CN103257908AInactive Publication Date: 2013-08-21LANGCHAO ELECTRONIC INFORMATION IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Publication Date
2013-08-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a software and hardware cooperative multi-controller disk array designing method. Along with increasing of controller quantities, heartbeat calculating load of each controller is fixed, and fault judging time is also fixed. Bidirectional annular heartbeats can enable failures of a plurality of continuous controllers to be faster found, and have good expansibility. The bidirectional annular heartbeats are operated on a system software layer and belong to a software heartbeat mechanism. Due to the fact that the software heartbeats are operated in the controllers, when the controllers fail, the split-brain problem is easy to cause. Therefore, in design of the software and hardware cooperative multi-controller disk array designing method, the software heartbeat mechanism is cooperated with a hardware arbitration mechanism, the split-brain problem is avoided, state monitoring reliability of the controllers is improved, delay of finding a fault is reduced, efficient and reliable system state maintenance is achieved, and normal and stable operation of a storage service is ensured.
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Description

technical field

[0001] The invention relates to the field of computer systems and storage, in particular to a multi-controller disk array design method with software and hardware coordination. Background technique

[0002] With the advancement of technology, the performance of disk arrays is continuously enhanced, and their functions are becoming more and more perfect, and their status in IT facilities is becoming more and more important. The stable and reliable operation of storage devices is of increasing significance to data security and business production. The structure of the disk array has gradually developed from the initial single control to dual control and multi-control. The dual-controller disk array has two mutually standby controllers to work in coordination, and other components also adopt redundant design. Compared with the single-controller disk array, the reliability and performance are greatly improved, and it can meet the requirements of common business a...

Claims

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