一种磁盘阵列缓存数据的保存方法以及磁盘阵列

Caching date storing method of disk array and disk array

Abstract

本发明公开了一种磁盘阵列缓存数据的保存方法以及磁盘阵列,此方法包括:将磁盘阵列中控制器的输入数据写入相应控制器的缓存模块,并将控制器的输入数据镜像到此控制器的镜像控制器的缓存模块中,一控制器称为目标控制器的镜像控制器检测到所述目标控制器的状态从有效状态转换为无效状态时,通过数据刷新模块将所述镜像控制器的缓存模块中缓存的所述目标控制器的输入数据刷新到磁盘上保存。本发明通过对控制器的缓存数据进行镜像,在磁盘阵列中控制器意外故障时,保证内存的数据的安全性以及正常的数据处理功能。
The invention discloses a cashing date storing method of a disk array and the disk array. The caching date storing method comprises the steps of: writing the input data of a controller in the disk array into a caching module of a corresponding controller, and mirroring the input data of the controller into a caching module of a mirroring controller of the controller; and refreshing the input data of the target controller cached in the caching module of the mirroring controller to a disk to be stored through using a data refreshing module when a controller called as a mirroring controller of a target controller detects the state of the target controller is changed from a valid state to an invalid state. In the caching date storing method of the disk array, the cached data of the controller is mirrored, therefore, the safety of data of an internal memory and the normal data processing functions are ensured when the controller in the disk array fails accidentally.

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