> On Sun, 1 Aug 2004, Mark Watts wrote: > > RAID Configuration: > > 4-disk RAID-5 with 64K block size. > > > > /dev/sda1 = / = 20GB > > /dev/sda2 = swap = 2048MB > > /dev/sda5 = /home = 100GB > > > > All partitions (except swap) formatted as ext3. > > It would be interesting to see difference if you put the system and swap > on another drive that is not part of the RAID5. With 2GB ram, I can disable swap entirely if you want, but I don't have another drive to put it on. > > > Kernel - 2.6.8rc1, SMP for x86_64 > > I use v2.4, haven't used 2.6 with 3ware and SMP at all, so the problem > might be there. Did you try the smp_affinity thing I emailed about 1-2 > days ago? No - The system is at work - I'll try it on Monday. > > > Slow write speeds is one thing, practically locking the system up while > > the write occurs is another, unless I'm missing something obvious. > > Well, if the system needs to page-in and this page-in takes seconds to > fulfil because the raid5 is full at work and has a large latency queue, > that might explain it. Does the system do anything else when you're > copying? No (thats the point!). Playing (or rather skipping) mp3's with xmms is about the most it does. I'm going to try using xfs instead of ext3 on Monday too. - 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
