摘要
为双头镜像磁盘系统建立错误模型，在该模型的基础上描述了双头镜像磁盘系统的容错调度算法．提出一个实时双头镜像磁盘系统的实时容错模型，并对容错性能进行了详细分析，推导出系统在完成一个实时Ｉ／Ｏ任务时的失败概率．该容错模型的建立将使实时双头镜像磁盘系统具有更强的健壮性．
A fault tolerant model for two headed
mirrored disk system is presented. Based on such model, a fault tolerant disk scheduling
algorithm is described. The probability of the failure of a real time I/O task is derived. The real
time fault tolerant model can result in robustness for the real time two headed mirrored disk
system.
出处
《华中理工大学学报》
CSCD
北大核心
1999年第7期11-13,共3页
Journal of Huazhong University of Science and Technology
基金
国防预研基金
关键词
双头镜像磁盘
I/O请求
实时容错模型
磁盘
设计
two headed mirrored disk system
real time and fault tolerant scheduling
algorithm
I/O request
fault model
performance evaluations
