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To understand what is raid level 10 you need to know what is Raid 0 and what is Raid 1.

Raid 0 is writing of certain data to two hard drive in stripes, thus doubling the speed of writing or loading data.

Raid 1 is parallel writing of data to two hard driver. Whatever is written to drive one is written to drive two, thus having automatic backup of data in case of something goes wrong.

Now if you combine these two, you get Raid 10.

Your data are first written in stripes to hard drive let's call them 1 and 2 and then data from 1 and 2 are copied to hard drive 3 and 4 respectively.

All this happen on the fly. This give speed and security of your data if one of primary hard drives fails.

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13y ago

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