s********k 发帖数: 6180 | 1 【 以下文字转载自 EE 讨论区 】
发信人: silverhawk (silverhawk), 信区: EE
标 题: MTTF(mean time to failure)问题
发信站: BBS 未名空间站 (Tue Jul 12 18:53:17 2011, 美东)
假设N个DISK,每个都有constant failure rate(exponential distribution with
mean as T_f,MTTF mean time to failure of single disk is T_f),failure都是
indepedent的,那么N个disk都fail的MTTF应该是多少呢? |
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