On Mon, 15 Nov 2010 14:52:20 -0500 Martin Cracauer <cracauer@xxxxxxxx> wrote: > Neil Brown wrote on Tue, Nov 16, 2010 at 06:47:46AM +1100: > > On Mon, 15 Nov 2010 11:16:46 -0500 > > Martin Cracauer <cracauer@xxxxxxxx> wrote: > > > > > Neil Brown wrote on Mon, Nov 15, 2010 at 12:11:58PM +1100: > > > > > > > > When mdadm does auto-assemble an array that doesn't obviously belong to this > > > > host, it tries to be careful and assembles it 'read-auto', which means that > > > > it is completely read-only until you try to write to the array. So no > > > > recovery or resync happens. > > > > Once you write to the array, md assumes that you are happy to have the array > > > > assembled on this device, and allows any resync etc to start. > > > > > > Speaking of which, are there any plans to do a true readonly mode? > > > > > > I missed that quite a few times. > > > > > > Martin > > > > In what does > > mdadm --readonly /dev/mdXX > > > > not meet your needs? > > (which is to say: I think there is a true readonly mode, but I've never > > seriously used it so don't know for certain that it is actually useful). > > Isn't that the mode that upgrades to read-write when you write? > No. NeilBrown -- 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
