On Mon, Mar 14, 2016 at 01:00:13AM +0100, Henk Slager wrote: > On Sun, Mar 13, 2016 at 9:56 PM, Marc Haber <mh+linux-btrfs@xxxxxxxxxxxx> wrote: > > Yes, I want to keep the possibility to remove huge files from > > snapshots that shouldnt have been on a snapshotted volume in the first > > place without having to ditch the entire snapshot. > > You could do ro snapshotting and in case you want to modify something > inside a snapshot/subvolume: > # btrfs property set <subvolume> ro false > # rm <subvolume>/<somefile> > # btrfs property set <subvolume> ro true I was not aware that it is possible to fiddle with the ro property of an already existing snapshot. I am not yet sure whether I love or hate this. > >> Also, If some part of the OS or tools scans through the snapshot dirs > >> every now and then with atime creation on, metadata grows without a > >> real need. > > > > I mount with noatime and nodiratime anyway, and the directory the > > snapshots are mounted to (/mnt/snapshots) are excluded in > > updatedb.conf. Any other idea which tool might scan filesystems and > > that might not be noticed when it's running about a five digit number > > of snapshots? > > Maybe baloo or so if you use KDE. I usually do those tests via ssh without even being logged in to a local desktop. Greetings Marc -- ----------------------------------------------------------------------------- Marc Haber | "I don't trust Computers. They | Mailadresse im Header Leimen, Germany | lose things." Winona Ryder | Fon: *49 6224 1600402 Nordisch by Nature | How to make an American Quilt | Fax: *49 6224 1600421 -- 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
