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RAID - What is it and how does it help?
chrisrobhay2
Member Posts: 114
in Hardware
The title says it all. What is RAID and how would it help me?
Comments
http://en.wikipedia.org/wiki/Redundant_array_of_independent_disks
Google for the win.
What is RAID? Pest Poison
How will it help you? Will help kill the roaches that lounge around your computer because your a messy eater and you forgot to clean up around it after playing WOw 10 hours straight.
I've tried to read that, but I don't understand a word of it. That's why I asked here for someone to explain it.
Well there are different modes of RAID.
RAID 0 is where you basically have 2 or more hard drives "acting" as one hard drive. This will increase the read/write speed, but if one hard drive fails, all data is lost on every hard drive. At least 2 hard drives needed.
RAID 1 is where data is mirrored across hard drives, meaning that the data you have on each hard drive in the RAID 1 array is the exact same. In other words, the content of hard drive 0 is the exact same as hard drive 1 and 2 at all times. At least 2 hard drives needed. Write speed is the same, but read speed is increased
RAID 5 is a sorta mixture of raid 0 and 1. You have some data striping(blocks of a file is spread out on the hard drives which is what increases the performance) along with parity which will provide data protection should one drive fail. Requires at least 3 drives. The performance is great, the protection good, but you'll reduce you capacity of 1 drive.
That's the most commonly used. There are some more which you can read on the net because I'm too lazy to write about them here and because I haven't used them to from the top of my write what they do.
Hope that was of some help
Ok, thank you.