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奇偶校验能否排除指定文件目录或者硬盘?

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如题所示,硬盘数据有些很珍贵有些是垃圾

我不清楚奇偶校验具体是怎么校验的,感觉像是软件运行的备份模式

想知道能否完成排除指定目录或者硬盘的设想

这样一来就不会因为校验盘本身IO速度和一些不重要但体量很大的数据,拖慢整个系统运行

好像是不能,但是应该是可以单列出来一个磁盘,不加到阵列里,这样校验的时候就不会校验这张盘了

我理解的校验盘是通过计算阵列中所有数据盘相同位置扇区的数据,是直接读取底层磁盘的数据,与上层的文件系统无关,所以一个阵列中的硬盘的文件系统可以同时有btrfs和xfs,并且校验盘的大小要大于等于阵列中最大的磁盘

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