DBA, is your RAID 5 array secure?

This article mainly organizes Forum content. (Forum address: bbs. et8.netbbsshowthread. php? T1026112) Many people have encountered RAID 5 failure on the server. Usually, after a disk is dropped, the second disk is immediately dropped.

This article mainly organizes Forum content. (Forum address: http://bbs.et8.net/bbs/showthread.php? T = 1026112) Many people have encountered that RAID5 is suspended on the server. After a disk is dropped, the second disk is immediately suspended.

This article mainly organizes Forum content. (Forum address :? T = 1026112)

Many people have encountered that RAID5 is suspended. In the U.S. space, after a disk is dropped, the Hong Kong server and Hong Kong server are rented, and the second disk is immediately suspended.

Theoretically, the probability of failure of two hard disks at the same time is very low, but why?

The probability of unrecoverable read errors. From a statistical point of view, it is also relatively rare. Generally, it refers to the number of digits read before a read error occurs.

Data Inspection (()

For databases: raid 1 + 0 is the best thing! (Required during Backup;

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