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How Bad Is RAID5 w/ Onboard RAID Controller?

post #1 of 22
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Well here's the thread that explains the reason why I can't use RAID0. So how bad is using RAID5 without a dedicated RAID controller? And are there any benefits for me using RAID5 without a dedicated RAID controller compared to using RAID0?

And does anyone have any hard drive benchmarking programs that work for Vista Ultimate 64bit so I can post my results?
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post #2 of 22
You have deeper problems then your onboard RAID controller if it blue screens when using RAID 0 and not when using RAID 5, that doesn't make any sense

It is possible that you have a dead drive, but if that was the case it should be detected. And RAID 5 is pretty bad with on board, every time you write, it has to calculate a ton of parity bits, and you really do need special hardware to do that efficiently. Your read performance will be good, but write performance will suck, big time, and it'll drain your CPU for writes to the disk.

And I don't think your gfx card is the problem, why would that have ANY effect on why RAID 0 doesn't work but 5 does? Seems like a very odd issue..
post #3 of 22
Thread Starter 
Quote:
Originally Posted by demoship View Post
You have deeper problems then your onboard RAID controller if it blue screens when using RAID 0 and not when using RAID 5, that doesn't make any sense

It is possible that you have a dead drive, but if that was the case it should be detected. And RAID 5 is pretty bad with on board, every time you write, it has to calculate a ton of parity bits, and you really do need special hardware to do that efficiently. Your read performance will be good, but write performance will suck, big time, and it'll drain your CPU for writes to the disk.

And I don't think your gfx card is the problem, why would that have ANY effect on why RAID 0 doesn't work but 5 does? Seems like a very odd issue..
Main reason why it blue screened was because of my 8800GTX. After I continued to reinstall with RAID0, it got to the point where Windows kept getting this error. In the very beginning, RAID0 installed Windows perfectly.
Quote:
Windows cannot install required files. Make sure all files required for installation are available, and restart the installation. Error code: 0x80070001.
I kept trying to reinstall Windows with RAID0 after I figured out that my 8800GTX was causing the problem, but I kept getting that error message. I ended up trying out RAID5, and it finished installing Windows.
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post #4 of 22
Quote:
Originally Posted by Akatsuki No Tobi View Post
Main reason why it blue screened was because of my 8800GTX. After I continued to reinstall with RAID0, it got to the point where Windows kept getting this error. In the very beginning, RAID0 installed Windows perfectly.

I kept trying to reinstall Windows with RAID0 after I figured out that my 8800GTX was causing the problem, but I kept getting that error message. I ended up trying out RAID5, and it finished installing Windows.
still sounds like bad sectors on one of your HD's to me.
    
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post #5 of 22
HD Tach works fine... just make sure to enable XP Run Mode and Admin rights.

RAID5 requires a lot more complicated calculation for parity.
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post #6 of 22
Akat, are you SURE it's 8800GTX?

Do you have another graphics card to try with? It really sounds like you have an underlying problem with one of your disks. If that's the case, you MUST replace the disk that's causing it asap.
post #7 of 22
Thread Starter 
Quote:
Originally Posted by demoship View Post
Akat, are you SURE it's 8800GTX?

Do you have another graphics card to try with? It really sounds like you have an underlying problem with one of your disks. If that's the case, you MUST replace the disk that's causing it asap.
Yeah. I am running my computer with my X1600 Pro and no blue screens.
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post #8 of 22
It's fine w/ RAID 0 too?
post #9 of 22
Thread Starter 
Are these results any good?
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post #10 of 22
67.8 MB/s? With FOUR DRIVES in RAID?

Sorry to say, but that's terrible! I think a single drive reads that fast
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