> > I've actually been doing some of those benchmarks here. Given a Silicon > Image 3124 card in a x1 PCI-e slot, my maximum throughput should be about > 250MB/s (PCI-e limitation). My drives behind the pm are all capable of > about 80MB/s, and I have 4 drives. What I've found is that when accessing > one drive by itself, I get 80MB/s. When accessing more than one drive, I > get a total of about 120MB/s, but it's divided by however many drives I'm > accessing. So, two drives is roughly 60MB/s each, 3 drives about 40MB/s > each, and 4 drives about 30MB/s each. > Doug, I hate to ask the obvious, but you do have a 3Gbit/sec connection between the controller and the PM, right? I only ask because your 120MB/sec is about right for a 1.5Gbit/sec connection. I was under the impression you should max out closer to 250MB / sec with a good controller and PM and a 3.Gbit/sec connection. I have not done any testing myself. Greg -- 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
