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RAID 5 w/ a controller is ultra fast

1K views 23 replies 13 participants last post by  demoship  
#1 ·


I didn't think it was physically possible to read from drives at 600 MB/s
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(setup: 4X 250GB 7200 RPM drives w/ an Areca-1210)
 
#15 ·
Quote:


Originally Posted by equetefue
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get out !!! we having spaghetti tonight.... j/k

Very nice... Might have to get that card... How hard is to setup raid with it ?

Very easy.

Here's the steps (Basically)

1. Create driver disk w/ the bootable CD (you need a 3.5" floppy -- not included)
2. Create a RAID array w/ the BIOS on the card (it'll format it and all that stuff)
3. Install the RAID driver w/ the floppy disk you created

Done!

As far as the cables go, the airflow's still pretty good, so I don't have a problem with it
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#17 ·
Quote:


Originally Posted by equetefue
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get out !!! we having spaghetti tonight.... j/k

Very nice... Might have to get that card... How hard is to setup raid with it ?

It's the same process as setting up any RAID. Install drivers before OS. (assume OS will be on RAID).

Any chance of a RAID0 benchmark? 300MB/s?
 
#20 ·
RAID 0 will perform better then this setup for writes, reads will be around the same.

And yes, I can feel the benefits of the array.

Windows installation took 10 minutes
Windows takes about 25 seconds to boot once it starts loading (The BIOS stuff and other initialization take maybe 15 seconds)
Installation of new programs happens unbelieveably fast as well

If you're spending 4K+ on top of the line everything, I'd definately say go for a card like this. Or if you have a need for data security, this is a great setup too. Manually copying files is a pain, and you forget to do it too.
 
#22 ·
Quote:

Originally Posted by demoship View Post
I didn't think it was physically possible to read from drives at 600 MB/s
Image


(setup: 4X 250GB 7200 RPM drives w/ an Areca-1210)
The 600 MB/s is a burst speed, so it doesn't read that fast for long, as indicated by the fact that your average read is still under 180 MB/s. Regardless, those are excellent numbers! I just wish RAID controller cards weren't a bagillion dollars for a good one.
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#24 ·
With 24 drives you'd want to set it up as a 23 drive RAID 6 + spare. And yes, it'd be insanely fast. RAID 6 will read at the same speed as RAID 5, and write just a tiny bit slower (Since with 23 drives, RAID 5 can effectively write to 22 drives + 1 parity bit, RAID 6 is writing to 21 drives + 2 parity bits), but with that many drives, you need to have 2 drive redundancy.

And a good controller isn't THAT much if you have a high end build. Instead of getting 2 8800GTXes, get 1 GTX and 1 $350 RAID Controller. Note that loads are very fast. Loading a new level in oblivion only takes about 3 seconds (it takes 2 seconds to get the first bit of the load, then the rest goes instantly)