On Tue, Aug 25, 2015 at 11:59 AM, Austin S Hemmelgarn <ahferroin7@xxxxxxxxx> wrote: > On 2015-08-25 12:39, Chris Murphy wrote: >> The one problem case I still have with the latest versions is multiple >> device Btrfs volume UUID doesn't exist when 1 or more devices are >> missing. > > I've seen this myself, but only sometimes. Based on my own testing, it only > seems to happen when one of the disks with a system chunk on it is missing > (for example, in a 3 device raid1 setup, one of the disks won't have a > system chunk on it, and if disk goes missing, I can still mount by UUID > fine). I'm virtually certain I've reproduced this with a 2 disk raid1, both should have system chunks. Separately, it seems to me that every disk should have a copy of the system chunk, i.e. make it fixed as either DUP on single or n-copies raid1 when on multiple devices. *shrug* -- Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
