On Sat, Mar 13, 2010 at 6:50 PM, Bill Davidsen <davidsen@xxxxxxx> wrote: > Having a spare on raid-1 is fairly pointless, it hurts performance and buys > you nothing. Having one more copy of the data built and ready serves you > better. Can you explain this as I find this interesting. How does having a /boot partition on 3 drives with 1 spare hurt performance? Are you saying that I would get better drive performance if I had all 4 disk partitions active members of my RAID1 /boot? I just don't understand how the 4th disk doing nothing but acting as a spare would hinder performance. Secondly, if the above statement also applies to my / partition? Would you suggest using all 4 drives as active partitions in a RAID5 array too? If I have a 3 disk RAID5 and one hot spare, do you think I would get less performance value for my configuration? Thanks for the clarification! -- 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
