It might be worht a try. I have 6 pci slots. That i know of today my mobo shares irq on pci 5 and 2. looks like i cant get around that. I have disabled apic on mobo too. Going to see if i can get me 2 more ata133 cards then to see if i get more lucky :) Thanx for your answers and suggestions. "Gordon Henderson" <gordon@xxxxxxxxxx> skrev i meddelandet news:Pine.LNX.4.56.0502171435420.819@xxxxxxxxxxxxxxxxxx > On Thu, 17 Feb 2005, Phantazm wrote: > >> I use master slave. Problem is that i cant break raid set couse if i do i >> will loose over 1TB of data :/ >> >> Goin to see if i can get more controller cards though. > > Do it. Use 4 2-port cards for your 8 drives and only one drive per cable. > It is possible, and I've had it happen to me, that a hardware failure on a > failing drive can cause loss of access to the 2nd drive on the same cable. > Fortunately when it happened to me, the disks weren't in a RAID set and I > didn't lose any data on the other drive, but if the disks were in a RAID > set, then you'd have a 2-disk failure on your hands, and unless it was > RAID-6, then you'd be shafted! > > I was about to suggest running with noapic, but you've already tried > that... You might also want to see if the motherboard has a way to turn > the APIC off too. I had that on one Athlon mobo, and running it all in PIC > mode kept it going much better. > > Also experiment with PCI slot locations, although with 4 PCI cards, you > might not have much luck, depending on your motherboard. Try to get each > card on its own interrupt if at all possible. Some BIOSes can help fix > this for you, some can't.... > > Gordon > - > 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 > - 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