check this too: http://www.hardwaresecrets.com/article/315 http://en.wikipedia.org/wiki/Native_Command_Queuing http://en.wikipedia.org/wiki/TCQ http://en.wikipedia.org/wiki/I/O_scheduling http://en.wikipedia.org/wiki/Deadline_scheduler http://en.wikipedia.org/wiki/CFQ http://en.wikipedia.org/wiki/Anticipatory_scheduling http://en.wikipedia.org/wiki/Noop_scheduler http://doc.opensuse.org/products/draft/SLES/SLES-tuning_sd_draft/cha.tuning.io.html and many others -- 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