Hey gang, FP on linuxquestions Greetings!

I recently built a couple new boxes both with Gigabyte GA-MA74GM-S2 mainboards, AMD procs and SATA II drives. One box is doing just fine (good uptime), but the other... I'll come home from work or when I wake up... my entire root filesystem is GONE. Naturally gnome freaks out and I can't even run 'cat' 'ls', etc, on account of no / fs. Only option is hard reset, with the added bonus of nothing in the logs, again, no / fs. Near as I can tell is these drives are going offline somehow, but that's only a suspicion. fsck reveals nothing, though I have yet to do a bad block check...

The setup is I'm using this mainboards' AMD/ATI SB700 southbridge with SATA RAID at level 1. I suppose I forgot about the whole "fake" RAID and just assumed that everything was done in hardware. Anyway, both systems installed just fine and run.. (BOY linux OS installer packages are getting savvy these days!) and the other system appears rock solid. So why this system is loosing it's disks 'randomly' is beyond me. As a side note, does anyone know how to tell that I am actually mirroring these drives, that the RAID is indeed working and that the array is in good health in linux??

I'm running Debian Lenny on the 'solid' system and Ubuntu Intrepid (2.6.27) on the flaky one. All hardware is basically the same, with the exception of a beefed up AMD proc, PCI-E vid card, and larger capacity 640GB drives on the flaky system.

Any input is appreciated!!

-Ponga