On Tue, 22 Aug 2017 16:24:51 +0200 Ulli Horlacher <frams...@rus.uni-stuttgart.de> wrote:
> On Tue 2017-08-22 (15:44), Peter Becker wrote: > > Is use: https://github.com/jf647/btrfs-snap > > > > 2017-08-22 15:22 GMT+02:00 Ulli Horlacher <frams...@rus.uni-stuttgart.de>: > > > With Netapp/waffle you have automatic hourly/daily/weekly snapshots. > > > You can find these snapshots in every local directory (readonly). > > > Example: > > > > > > framstag@fex:/sw/share: ll .snapshot/ > > > drwxr-xr-x framstag root - 2017-08-14 10:21:47 > > > .snapshot/daily.2017-08-15_0010 > > > drwxr-xr-x framstag root - 2017-08-14 10:21:47 > > > .snapshot/daily.2017-08-16_0010 > > > drwxr-xr-x framstag root - 2017-08-14 10:21:47 > > > .snapshot/daily.2017-08-17_0010 > > > drwxr-xr-x framstag root - 2017-08-14 10:21:47 > > > .snapshot/daily.2017-08-18_0010 > > > drwxr-xr-x framstag root - 2017-08-18 23:59:29 > > > .snapshot/daily.2017-08-19_0010 > > > drwxr-xr-x framstag root - 2017-08-19 21:01:25 > > > .snapshot/daily.2017-08-20_0010 > > > drwxr-xr-x framstag root - 2017-08-20 19:48:40 > > > .snapshot/daily.2017-08-21_0010 > > > drwxr-xr-x framstag root - 2017-08-20 02:50:18 > > > .snapshot/hourly.2017-08-20_1210 > > > drwxr-xr-x framstag root - 2017-08-20 02:50:18 > > > .snapshot/hourly.2017-08-20_1610 > > > drwxr-xr-x framstag root - 2017-08-20 19:48:40 > > > .snapshot/hourly.2017-08-20_2010 > > > drwxr-xr-x framstag root - 2017-08-21 00:42:28 > > > .snapshot/hourly.2017-08-21_0810 > > > drwxr-xr-x framstag root - 2017-08-21 00:42:28 > > > .snapshot/hourly.2017-08-21_1210 > > > drwxr-xr-x framstag root - 2017-08-21 13:05:28 > > > .snapshot/hourly.2017-08-21_1610 > > btrfs-snap does not create local .snapshot/ sub-directories, but saves the > snapshots in the toplevel root volume directory. It is beneficial to not have snapshots in-place. With a local directory of snapshots, issuing things like "find", "grep -r" or even "du" will take an inordinate amount of time and will produce a result you do not expect. For some of those tools the problem can be avoided (by always keeping in mind to use "-x" with du, or "--one-file-system" with tar), but not for all of them. Personally I prefer to have a /snapshots directory on every FS, and e.g. timed snapshots of /home/username/src will live in /snapshots/home-username-src/. No point to hide it there with a dot either, as it's convenient to be able to browse older snapshots with GUI filemanagers (which hide dot-files by default). -- With respect, Roman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
