Hello, I just can not understand what disk space redundancy is. I searched in Yandex, but found a couple of phrases. And so, I did not see a good explanation. Help with a link or explain what this is. Thank.
- In order not to duplicate, I already wrote the answer by the time the question was closed, look at [here] ( hashcode.ru/questions/109791/… } - Dex
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1 answer
Fault tolerance of the array is achieved due to the redundancy of information stored on hard drives, that is, part of the capacity of the disk space is allocated for official purposes, becoming inaccessible to the user. The redundant information can either be placed on a dedicated disk or distributed among all the disks in the array. There are many ways to generate redundant information. The simplest of these, full duplication (or mirroring), is 100% redundant. To reduce redundancy (increasing the amount of usable disk space), various mathematical methods are used, such as parity or the use of error correction codes.
This is it?
Malus malus
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