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服务器1块硬盘掉线后重建raid5并同步数据-SUN

 4 years ago
source link: https://blog.51cto.com/sun510/2466711
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neoserver,ios ssh client
HP SMART ARRAY在创建一组新的RAID5时,默认会全盘重建所有块校验,也就是说在组成RAID5的任一条带中,总有一个校验块的数据是创建时生成的,相对于原先的有用数据而言,即是破坏的。经过分析,后生成的4块盘RAID5是按双循环,64K块大小,16次条带换校验的方式组织的,也就是说在4块磁盘成员中,大约每隔3M便会有1M的数据是错误的。

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