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6 1TB Raid 10 Array Using Onboard

post #1 of 5
Thread Starter 
I will be buying a Gigabyte UD5 990fx which can support RAID 10 on 6 of its 8 sata ports.

My plan is to use 6 1TB Spinpoint f3s in raid 10 for 3 TB of mirrors storage. I do not want a raid card.

Will the onboard be able to handle that? I've read that more than 4 drives will slow the onboard controller down, but since raid 10 uses no parity data I'd think the onboard could handle it.

And a second question is I also plan on using an ssd as a boot drive and having a bluray drive; those will use the last 2 sata ports. On this motherboard the 6 sata ports and the other 2 sata ports are on separate controllers. Is what I want to do possible? Do I use ahci?

Thanks for any help!
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Terribad
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post #2 of 5
Why do you need RAID10? What will be using the storage for?

RAID10 over 4 disks is useful in only very specific cases.

If you plan on using it to hold media, RAID5 is basically just as good for less cost. Hardware RAID6 is more redundent for about the same price.
Edited by DuckieHo - 8/18/11 at 11:05am
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post #3 of 5
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
Why do you need RAID10?

RAID10 over 4 disks is useful in only very specific cases.
I want redundancy and raid 5 will require a raid card which I do not want. Raid 5 using onboard will suffer write performance.

Or am I mistaken? I admit I know little about the performance differences between the raid specifications.

Ideally I'd like 6tb of storage, but I've had so many hard drives fail on me I'm willing to cut the number to have a bit of security.
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post #4 of 5
That controller probably won't break a sweat under 6 HDDs... even if you had all 6 in RAID-0.

http://www.overclock.net/hard-drives...enchmarks.html

But I do think you're best off getting your SSD on port 0. Then maybe you can do 4-5 drive RAID5 or something.

Write speeds will be worse than with a dedicated RAID card, but I can't say how much worse. That's a pretty powerful onboard controller. I'd try it out, run some benchmarks, and see how it goes.
     
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post #5 of 5
Quote:
Originally Posted by Grissecon View Post
I want redundancy and raid 5 will require a raid card which I do not want. Raid 5 using onboard will suffer write performance.

Most motherboards nowadays will do RAID-0, 0+1 (depends on manufacturer), 5, and 10 (for Windows). *nix OSes can do RAID-0, 1, 5 (I believe) natively, possibly even 10.

You don't necessary need a RAID card, if you're doing a software RAID, but YMMV with the write speeds as Kramy already mentioned
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