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Raid HD keeps rebuilding itself

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#1 Vroom125


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Posted 08 August 2009 - 02:41 AM

I've set up a raid 5 array, but it does not seem to be working. Everything seemed fine, until the Intel Matrix Storage Console reported to me that a new hard drive was detected on port 0. Then it showed that the volume was being rebuilt. After this happened once, and took 12 hours, it happened again, almost immediately after the first rebuild ended. Another 12 hours?

The Raid bios controller controls the raid array.

Gigabyte EP45T-UD3LR Motherboard
3 WD 320GB SATA Hard Drives

What's going on?!

Thanks for any help,

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#2 hamluis



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Posted 08 August 2009 - 10:18 AM

Hard drive diagnostic?


#3 Vroom125

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Posted 08 August 2009 - 03:15 PM

I think I might have figured it out. I did a little bit of research and found out the the write-back cache on hard drives causes problems with raid configurations when there are sudden power losses or shut downs. The hard drives I'm using have 16 MB caches, so I just disabled the write-back cache, and although this will slow the computer down a little, I think it will fix the problem. Then I'll change it again when I'm done benchmarking and stress testing.

I'll try this out and see if it works

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