> Anyone know if I can force the kernel to not share interrupts. I think that Highpoint chip only uses one IRQ for both channels, but it might be helpfull to move your SCSI card's IRQ to another slot. > Currently I have stability problems with the box, if I use the ide2 and > ide3 drives a lot the machine freezes. If your DMA is on on the Highpoint drives, this might cause lockups. That's what I was getting with another machine I have. It is a M571 mobo (Chinese cheapo generic crap) with two IWills driving four 80 GB Maxtors in RAID 5. As long as DMA was on, I couldn't complete syncing array after configuring it. Contstant lockups. After I did hdparm -d 0 /dev/hd[e,g,i,k] the arrays synced and seem to be working correctly now. I need to develop a way of checking for data corruption. Of course the price is the speed. With DMA on I was getting 2000K/s syncing speed. without DMA - 800K. I am running plain RH 7.2 on this machine. It may be worth trying hdparm -X to set drives to a slower DMA, although this is just a patch, not a solution. Before trying to use this configuration I had a single IWill with two Maxtors in RAID1. Worked without a glitch. I wish I remembered if the controlled had it's own IRQ. Although I doubt it. I was running RH 7.1 back then. Is your CPU usage also close to 100% when using RAID? Artur - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
