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Need Some info on Raid

post #1 of 8
Thread Starter 
OK, I know this might be dumb but it's ok. My question is can some one explain to me about raid... I have looked it up on the net and it's pretty confusing to try to understand. I want to use 4x 150 raptors and set them all to raids, but I was told that they have to be set to SATA or something like for them to actually work right and also, would it be worth it if I did that??

I'm really new to the whole raid thing, so hopefully some one can help me out.
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post #2 of 8
I've never used a RAID setup b4 but the main 2 are RAID 0 and RAID 1. actulyl that's not completly true, they're are many RAID setups and RAID 5 is popular know but fothe most part all teh otehr types of RAID are some incarnation and combination or 0 and 1

RAID 0 basically puts part of every byte on one HDD and the rest on the other, referred to as stripping if i recall. if 1 HDD fails u lose all teh data tho. really really good increase in speedfrom what i hear tho.

RAID 1 basiaclly puts an identicle byte on ea. HDD. y would you do this? it somewhat improves bandwidth and makes for a fault-tolorent system for mission-criticle situations.

hope helped...

OBTW SATA is a type of interface. like IDE, USB, DVI, etc...
post #3 of 8
Hey hope this helps

Quote:
Originally Posted by neocarl View Post
There are many types of raid, basically:

Raid 0 - striping, splits data into two hard disks( faster data transfer)
Raid 1 - Mirroring/Duplexing, basically copies the data on two hard drives, so if one fails, the other takes place. Duplexing is better since you have two controllers, mirroring occurs with one controller, and can be set from windows itself. (advantage from software raid, you can split hd into partitions, advantage from hardware raid, processing occurs on the card itself and doesnt use the cpu for caching ect..)
Raid 5 - Parity checking (If you have Missing or corrupt data, the parity check tries to re construct the missing data from segment)
Raid 10 - is raid 1 and raid 0 combined, you have data redundancy and faster performance combined. you need 4 hdisks min.

Those are the most common raid types, raid 2,3,4 are similar to raid 5, however raid 5 is more reliable than 2,3,4.
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post #4 of 8
Thread Starter 
What is the chance of it faulting out??? or something going wrong with the raid setting?? would it be worth it if I did something like that?

Thanks for the info every one.
I couldn't actually remember what he said about it, but I thought that would be it and I guess it wasn't lol
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post #5 of 8
There's a high risk by going RAID, True raid is redundant so if you want a safety net don't go RAID0 or strip.

I believe raid 10 is the best way to go but it is expensive.

Is there an advantage to raid. It comes to the user, Are you willing to take the extra risk for the gain in performance. In my case I opted to go for the Raid, and don't regret it at all. I just make clones of the the HD every now and then in case of hardware failure.

Hope it helps
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post #6 of 8
Thread Starter 
Thank you for that. I'm looking for something with speed and fault tolerance. I've done some research and think raid 10 would be better but I don't know how much it would be lol (Runs To google) to get price

[Edit]
I was looking online earlier and found raid controller cards. One more question before I actually start going that way a little more. I know alot of board only go to Raid 5 and thats it.... If I wanted to go with raid 10 then I would have to buy the card right?
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post #7 of 8
someone please correct me, but 90% that raid10 means 2 drives in raid0 with 2 drives in raid1 for redundancy.
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post #8 of 8
exactly, raid 10 needs a minimum of 4 drives.
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