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I have this motherboard, it's a gigabyte Intel Z68 chipset. I used the Intel chipset configuration (between BIOS and OS) to configure a 3 disk Raid5 array which I formatted as NTFS (Linux already has a 2 Disk Raid1 ext3 array). One of the nice things about using NTFS is that I had a large raid array that both operating systems could see.

This changed today and I still cannot figure out why. I don't think I did any upgrades and all of the dev nodes for the individual drives are still there but my Linux system does not recognize the presence of the array. Does anyone have any suggestions? I'm stumped.

System: Archlinux x64 Windows 7 x64 (Still sees raid array just fine)

edit: I just rebooted (which I had done 3 or 4 times before already) and now it's back. I'll check dmesg if it happens again. Newbie mistake forgetting to check that.

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Does dmesg output shows something unusual or a error message? –  Vitor Jul 16 '11 at 18:38

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