See this page: http://en.wikipedia.org/wiki/Non-standard_RAID_levels
for decent visuals on the different md raid10 layouts that linux/mdadm supports. (raid 10 and raid 1e sections) Doing raid 1 on top of raid 0 devices is called raid 0+1, and is not the same as doing raid 0 on top of raid 1 devices: raid 1+0 aka raid 10. The latter can withstand a much larger combination of failed components whereas the former can only withstand failures when they all occur within the same half of the single mirror. /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
