Need Clarification On RAID Arrays

Lycaroth

New Member
Howdy everybody.

I've come for a bit of clarification between a few RAID arrays I'm considering.

I'm all about security and back up ever since my old computer burnt out, luckily I transferred all my data onto my iPod a few days before, which I still don't remember why.

But to the point, the last thing I want is for that to happen again, so ever since I heard about RAID 1 I've wanted it in my next computer, but I've seen other options for data backup recently.

Now I know RAID 1 will duplicate the information from the first drive onto the second, which is ideal.

But I've also heard about RAID 5 which to my understanding does the same thing, but at faster speeds and with more drives, could you please clarify what RAID 5 does exactly?

And just in the past week I saw RAID 0+1, does this mean I can have a 150gig Raptor and a 750gig Caviar in RAID 0, then have a 1TB Caviar in RAID 1 that backs up all the information from the two RAID 0 drives?

My ideal set up would be a 150gig Raptor for the OS and Virus Scanners etc, then two 750gig Caviars in RAID 1 for music, games and general storage files, so they are secure and backed up, is that possible?

I'll be using this motherboard so I doubt there will be any problems for any of these RAID arrays.

http://www.i-tech.com.au/products/24824_eVGA_132_CK_NF78_A1_nForce_780i_SLI.aspx

Thanks for your input.
 
Have you read http://www.computerforum.com/10889-raid-101-a.html ? It should help you understand what the different RAID levels are.

Keep in mind RAID (except RAID0) protects you against drive failure, it's not a data backup solution.

Indeed I have read RAID 101, I was still unsure on some of the higher numbered RAID arrays.

And I'm glad that every RAID bar 0 protects against drive failure, it's why I've steered clear of the apparently tiny performance gain from RAID 0.

I think I'll go for the Raptor with the 2 Caviars in RAID 1, a lot of people seem to be happy with that set up.
 
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