RAID

NathanE

NathanE

NathanE

Soldato
Joined
21 Oct 2002
Posts
18,022
Location
London & Singapore
Hi,

I just bought a new PC (DS4 motherboard, 2x Seagate 500GB) and I want to set these drives up as a mirror image of each other.

What sort of performance increase am I looking at here? I know the theory is that read performance should increase quite a bit and write performance should be roughly the same. Can anyone put some real figures on that? :)

Also how does one setup the "Intel Matrix RAID" - do you just press a key at the RAID controller POST screen and set everything up in like a BIOS style screen? I might have a RAID 0 partition for Windows and a RAID 1 for everything else.

PS: I'm a total RAID cluebie if you haven't already realised :D
 
http://www.gamepc.com/labs/view_content.asp?id=matrixraid&page=4
http://www.techreport.com/reviews/2005q1/matrix-raid/index.x?pg=7

Just been reading these articles. It seems the performance increase of RAID 1 is quite subjective depending on the task at hand. I found this quite surprising as you'd think with 2 heads as opposed to 1 head that read performance would almost unconditionally be greater. I can't help but still think RAID 1 will pull ahead when there are multiple concurrent read operations though - and the benchmarks done by Techreport tend to indicate that.

I can't really see many uses for RAID 0 on my new PC. It would be good for a page file but with 4GB of RAM I don't think it's worth worrying about.

So I think I'll just make single RAID 1 array.
 
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