On Wed, 03 Oct 2007 19:53:08 +0200, Goswin von Brederlow wrote: > Andrew Clayton <andrew@xxxxxxxxx> writes: > > > Hi, > > > > Hardware: > > > > Dual Opteron 2GHz cpus. 2GB RAM. 4 x 250GB SATA hard drives. 1 > > (root file system) is connected to the onboard Silicon Image 3114 > > controller. The other 3 (/home) are in a software RAID 5 connected > > to a PCI Silicon Image 3124 card. I moved the 3 raid disks off the > > on board controller onto the card the other day to see if that > > would help, it didn't. > > I would think the onboard controller is connected to the north or > south bridge and possibly hooked directly into the hyper > transport. The extra controler is PCI so you are limited to > theoretical 128MiB/s. For me the onboard chips do much better (though > at higher cpu cost) than pci cards. Yeah, I was wondering about that. It certainly hasn't improved things, it's unclear if it's made things any worse.. > MfG > Goswin Cheers, Andrew - 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