Home Database Mysql Tutorial DBA亲,你们的RAID5阵列有保障吗?

DBA亲,你们的RAID5阵列有保障吗?

Jun 07, 2016 pm 05:40 PM
db raid5 database

该文章主要整理论坛内容。(论坛地址:http://bbs.et8.net/bbs/showthread.php?t=1026112)很多人遇到过服务器RAID5挂掉,往往掉一个盘后,第二个盘也立刻挂掉。

    该文章主要整理论坛内容。(论坛地址:?t=1026112)

    很多人遇到过服务器RAID5挂掉,美国空间,往往掉一个盘后,香港服务器,香港服务器租用,第二个盘也立刻挂掉。

    理论上两个硬盘同时失效的概率是很低的,但为什么会这样呢?

                                                                                  

 不可修复的读错误的概率。从统计角度来说也比较少见,一般来说是指读取多少位后会出现一次读取错误。






 


 

 

数据巡检(()

 

 

   对于DB来说:做raid 1+0 是最好不过啦!(备份时必不可少的;

 

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