Messages in this thread | | | From | "Larry Bates" <> | Subject | newbie - mdadm create raid1 mirrors on large drives | Date | Sat, 3 Dec 2005 12:17:15 -0600 |
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I hope this is the correct list for this question.
I've just recently begun using mdadm to set up some arrays using large drives (300-400Gb). One of the things I don't understand is this: when you first create a raid1 (mirrored) array from two drives mdadm insists on mirroring the contents of the first drive to the second even though the drives are entirely blank (e.g. new drives don't have anything on them). In one configuration I have, this takes about 16 hours on a 400Gb drive. When I do 5 of them simultaneously this takes 2+ days to complete. Is there some way to tell mdadm that you want to create a mirrored set but skip this rather long initial mirroring process? I don't really see that it actually accomplishes anything.
Thanks in advance for your assistance.
-Larry Bates
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