I realize DIO needs to be 4KB aligned, but why do large I/Os get chopped down into 4KB bio's? Doing a blocktrace of the md device, even though the app is writing at 512KB, the MD driver is receiving 4KB bio's. Why? Thanks, Chris -- 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