Thank you! Still working to wrap my brain around 'md'. Will stick with the first approach. Amusingly I performed it by accident, was confused and frustrated by result, then eventually realized it was ideal. At 07:31 AM 11/13/2012 +1100, NeilBrown wrote: >On Mon, 12 Nov 2012 13:11:50 -0500 starlight.2012q4@xxxxxxxxxxx >wrote: > >> Probably this is more elegant: >> >> mdadm --create --level=1 --raid-devices=2 --spare-devices=1 >/dev/sdd /dev/sde missing > >That is fairly meaningless ... I'm not sure it even works. > >While it makes sense for raid devices to be missing, it doesn't >make sense for spares to be missing. Spares are just >any devices in the array which aren't active. If they >are missing, then they aren't spare. > >NeilBrown > > >> >> At 12:26 PM 11/12/2012 -0500, starlight.2012q4@xxxxxxxxxxx >wrote: >> >After some pondering, think I've figure it out. >> > >> >Best way to go is to set it up with >> > >> > --create --level=1 --raid-devices=2 >> > >> >for the initial pair of drives, then >> > >> > --fail --remove >> > >> >the rotate-out drive, then >> > >> > --add >> > >> >the alternate drive. Now there will be >> >three drive slots with one "removed" and two >> >"active". >> >> -- > > -- 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
