On Fri, 5 Dec 2008, Mike Brancato wrote: > With ZFS, we can enable copies=[1,2,3] to configure how many copies > of data there are. With copies of 2 or more, in theory, an entire > disk can have read errors, and the zfs volume still works.
So you are saying that if we use copies of 2 or more that if we have only one disk drive and it does not spin up then we should be ok? My understanding is that the copies function is purely statistical and if some drives are overloaded and therefore are not selected as the next round-robin device, it is possible that the several copies may end up on the same drive. The copies functionality is intended to aid with media failure and not whole drive failure. Bob ====================================== Bob Friesenhahn [EMAIL PROTECTED], http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
