Hi Tejun, Did you get any response back from Silicon Image? Reference this thread: http://marc.theaimsgroup.com/?l=linux-ide&m=116727812518914&w=2 >> While dmesg claims that 3.0Gbps was negotiated, the combined >> performance of the >> 5 disks never exceeds 1.5Gbps, no matter how I combine them. Is >> something in >> the driver overriding the 3Gbps speed bits somewhere? > > Nope. I'll ask SIMG. > > -- > tejun > - Regards, Richard - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html