Home > centOS, Fedora 12 > What is RAID, Why RAID, how do i really install it?

What is RAID, Why RAID, how do i really install it?

Well, although i did couple of time, all the time i forget this. Better write it down:

1. RAID is all about storage
2. RAID 0 , 1, 5 is selection
3. RAID 5 is good which covers RAID 0 and RAID 1
4. RAID 0 is good only because it provides performance (speed), but disadvantage of it is, if 1 disk crash, all is lost.

5. RAID 1 is good buy not good for performance (speed), advantage is if 1 disk fail, it still run, so that i can patch a new disk

RAID 5 is expensive, RAID 1 is cheap, which solves it.

Extra note: Because to use RAID 1 for being cheaper, i recommend to use RAM and Xeon, so that a little more speed can be collected from CPU and RAM, after all both has to do quick time processing.

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