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Question about RAID system

post #1 of 11
Thread Starter 
*Noob Alert!*

What is RAID? I seen this RAID 0, 1, 2, 3, 4, 5, 6 in Wiki but I don't understand their description too much.

Can you educate me on this one?

I asked my friend if a Hard Disk Drive last long, he said "it depends".

So HDD is subject to fail in any time of any day and I'm so afraid that it would happen to my system. I got LOTS of movies, music, and anime collections in my storage which I earned from hard patient because my Internet is very very slow.

So I asked my friend if there is a solution to prevent this catastrophe, he suggested that I should have a RAID system, which I don't an idea what is RAID.

I don't care about the cost, but I need to make a RAID system.

Please be considerate and explain me precisely and briefly, what is a RAID?

Thanks in advance! I hope someone would help me here.

Anyone who can help me here will receive +Rep!
Edited by groomdedz - 1/13/11 at 2:12am
post #2 of 11
a raid won't save you from whether a hdd dies or not.

and honestly, I think you're better off googling it, will probably give the same results as here
post #3 of 11
Thread Starter 
Uh, I don't understand the diagrams in internet and the descriptions are too long I need a short pin-point description.
Edited by groomdedz - 1/13/11 at 2:24am
post #4 of 11
Well RAID 0 is purely for performance: you take 2 drives and it writes on both of them at the same time, you have the capacity of 2 drives and almost double the speed but if one drive dies data is lost

RAID 1 mirrors data from one hard drive to another so if one drive fails your data is intact but you only have the capacity of one drive

RAID 5 needs 3 hard drives and it can tolerate the loss of one drive



Thats about as much as I know hope that others can help more
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post #5 of 11
Basically Raid is a series of drives which together act as a single storage system. In most configurations this storage system can tolerate the failure of a drive without losing data and depending on how it is configured, can rebuild itself once the failed component is replaced

There are different types of raid.Raid 0 is used when performance speed is needed..However if one drive fails than both will fail.Raid 1 array provides redundancy by duplicating all the data from one drive on a second drive so that if either drive fails, no data is lost.

See this link for a quick reference

http://www.integratedsolutions.org/raid_ov.htm

Also another tutorial article for newbies

http://www.acnc.com/04_01_00.html
Hope this helps
Edited by pm1109 - 1/13/11 at 2:47am
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post #6 of 11
Thread Starter 
+Rep for Grobinov and pm1109! Thanks for the simple description and a link, I fully understand it now. So I should go for RAID 5
Edited by groomdedz - 1/13/11 at 2:49am
post #7 of 11
For storage only RAID 5 is good but as far as I know it does have a bit lower performance...
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post #8 of 11
Thread Starter 
Quote:
Originally Posted by Grobinov View Post
For storage only RAID 5 is good but as far as I know it does have a bit lower performance...
Well I'm using multiple WD Greens, which are very slow drives but I don't care about the transfer speed. I just want a much safe storage system to protect my files Thanks again!
post #9 of 11
Quote:
Originally Posted by groomdedz View Post
Well I'm using multiple WD Greens, which are very slow drives but I don't care about the transfer speed. I just want a much safe storage system to protect my files Thanks again!
Thats great then but you may want to look into getting a dedicated RAID card if it isn't too expensive it will perform much better
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post #10 of 11
Thread Starter 
Quote:
Originally Posted by Grobinov View Post
Thats great then but you may want to look into getting a dedicated RAID card if it isn't too expensive it will perform much better
Sure, cost isn't the problem. I'll be getting new drives this Saturday. Thanks!
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