一种高可用的自适应双控制器心跳设计

针对当前在构建高可用性系统的过程中，静态心跳时间设置的特征，设计一种双控制器心跳自适应模型。它能根据数据读写请求的频度特征，调节心跳时间的设置，从而最终提高双控制器存储系统的高可用性。在此基础上，建立其相应的故障检测高可用Petri网模型来评价双控制器的高可用性能。计算表明。该方法能提高双控制器系统的高可用性。

Design of a High Availability Self-Adaptability Dual-Controller Heartbeat

To address the problem of fixed setting heartbeat in building high availability system currently, designs a self-adaptability heartbeat model of dual controller,which can adjust heartbeat cycle based on the frequency of data read-write request, to improve the high availability of dual-con- troller storage system. Based on this model, establishes the high availability stochastic Petri net model of fault detection and uses to evaluate the effect of the availability impact. The result shows that the design can enhance the high availability of dual controller system.