Hi, Dan: >the md driver that allows it to take advantage of raid acceleration >hardware. I/O processors like the Intel IOP333 >(http://www.intel.com/design/iio/docs/iop333.htm) contain an xor >engine for raid5 and raid6 calculations, but currently the md driver >does not fully utilize these resources. does that mean offloading RAID to the IOP board or simply using the XOR engine in the IOP ? if you have some benchmarks which shows that under certain workload md is not IOlimited(due to excessive XOR computation) and then concluded that offloading XOR is a gud idea , then it must be :) ... I was going thru IOP manual myself and saw that they have a raid6 accelaretor too :) Let me know. -Johri. - 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