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If you want to know about the simple kinds of RAID, RAID zero and RAID one,

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we've got a separate video for that. Make sure you click the link here to check it out. This video is about RAID

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five and RAID six, which are more practical for professional applications

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and less practical for home users. Just like RAID one, RAID 5 is for protecting

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your data in the event of a drive failure. It requires at least three

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drives to operate with one of the drives being reserved to rebuild the data on

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the array if it dies. So if you had say for example six drives, you'd have the

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capacity of five drives. Because it stores data on multiple drives, you can

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read from it extremely quickly, making it great for archiving large amounts of

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data. However, without a complex hardware RAID controller, writing to a

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RAID 5 can be much slower. And rebuilding the array once a drive is

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failed and you replace it with a new one can be timeconuming. RAID 6 is kind of

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like a more durable version of RAID 5. It can survive up to two drive failures

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out of the entire array and still be completely rebuilt. That means, however,

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that you have to have at least four drives and it is much slower to write

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than RAID 5. So, pretty much unless you have a complex hardware RAID controller,

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you can't really run RAID 6. When you're running four drives, it's really

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impractical compared to something like RAID 10 and is more designed for

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professional applications where a large number of drives are built into larger

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arrays. If you're watching this, you've probably watched our video on RAID zero

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and one already. For consumers, RAID one's fine. If you're running only four

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drives, RAID one will give you 6 TB of

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usable space using 3 TB drives. RAID 5 gives you a bit more space, but you

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write to it much slower, so it can be useful. But RAID 6 gives you only 6 tab

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of space, and it's much slower and requires one of these bad boys. The

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numbers start to look very different once you move up to an eight drive

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configuration. However, RAID one will give you 12 tab of usable space only.

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Half of your drives are used for redundancy. RAID 5 gives you 21

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terabytes of space and RAID six will give you 18 terabytes of space. Plus the

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fact that RAID five can sustain one failure and RAID six can sustain two

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failures.

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Hey guys, thanks for watching this episode of As Possible on Techquicki. If

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Possible, click the link in the description of the video and leave us a

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