I am setting up a mythtv backend server on fedora 5 using 5x Seagate 300gb drives and PNY S-cure Raid 3. the bulk of the 1.2 TB is a jfs partition while there is a 100 mb /boot partition in ext2 also. the OS runs from / partition and /swap partition on a WD raptor on a different controller. My raid array keeps losing drives. Its usually drive 3 but sometiems drive 4, but they usually rebuild and then thigns are reported as 'all is well' again. No interruption to functionality during these drive failures for the past 2 weeks (added the raid and drives to my comptuer 2 weeks ago) Yesterday, i think drives 3 and 4 failed together-- after a reboot pny bios said 3 and 4 not attached-- after anotehr reboot, it 'array rebuilding', showing drive 3 as failed but 4 as fine. However, unlike the past failures, this time i only get to a grub> prompt and dont know how to/if i can boot the system I have rma'd the card and two drives, but am curious about other reasons this might be failing. How much power should i need? at first, all ran from a single 400w fanless psu. Athlon 2600, Asus A7v8x, gig of DDR333, raptor 74, 5x Seagate 7200 Sata, 2 optical drives, 2 PCI cards plus raid card after first failure, took 400 w psu from the closet and shorted the 'on' lead to the ground so it would run, then tied the ground from the closet psu to the psu in my system. I put all hard drives on the closet psu and resumed using the system. Things seemed to work better for a while but i had another couple harmless failures and then the major one... any help would be great! thanks, will -- View this message in context: http://www.nabble.com/troubleshooting-PNY-S-cure-tf1956814.html#a5367261 Sent from the linux-raid forum at Nabble.com. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html