On Thu, Jul 18, 2013 at 04:21:28PM +0100, Hugo Mills wrote: > On Thu, Jul 18, 2013 at 11:11:03AM -0400, Sandy McArthur wrote: > > Should I interpret the different used amounts (902.01GB vs 902.03GB) > > on my recovered RAID1 filesystem as that not all data is actually > > mirrored and so I should run a balance? The devices in the filesystem > > below are the same make/model drives. > > > > # btrfs fi show > > Label: 'mcmedia' uuid: 92b3345e-2589-423c-a228-d569bf94ab58 > > Total devices 2 FS bytes used 905.33GB > > devid 2 size 2.73TB used 902.01GB path /dev/sdc1 > > devid 1 size 2.73TB used 902.03GB path /dev/sdb1 > > > > Btrfs v0.20-rc1-358-g194aa4a > > > > # btrfs fi df /mnt/media/ > > Data, RAID1: total=894.00GB, used=892.99GB > > Data: total=12.01GB, used=11.56GB > > ^^^^^^^ This is unmirrored data. > > # btrfs balance start -dconvert=raid1,soft /mountpoint > > is the incantation you need: convert your data to RAID-1, and ignore > anything which has already been converted. > Build btrfs-next and boot into that first if you can before you do this as there is a slight bug with balance that will corrupt data if you crash. Thanks, Josef -- 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
