Hi, how does mdadm determine which device to synchronize to which? For example, I have two partitions A and B which I would like to be setup as a RAID-1 array. suppose A contains the data I want to have, and B contains rubbish. Obviously, I want B to be synched to A, and not the other way round. Suppose I do this: mdadm --create /dev/md0 --level=1 --raid-devices=2 A B Will B then automatically sync to A? I'm almost sure I just encountered a counterexample. Or what would happen with the following? mdadm --create /dev/md0 --level=1 --raid-devices=2 missing B mdadm -a /dev/md0 A will A then sync to B because it was added last, or B to A because A fills the "missing" spot, which was specified before B? So the question is: What criteria does mdadm use to determine which device to synchronize to which? Thanks in advance, Hans - 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
