Night of the second day:
# btrfs sub list /home ID 275 gen 3201 top level 5 path home ID 1021 gen 3193 top level 275 path .snapshots ID 1023 gen 1653 top level 275 path .snapshots/2014-03-13-2146 ID 1024 gen 1697 top level 275 path .snapshots/2014-03-13-2210 ID 1025 gen 1775 top level 275 path .snapshots/2014-03-13-2300 ID 1027 gen 1876 top level 275 path .snapshots/2014-03-14-0000 ID 1028 gen 1961 top level 275 path .snapshots/2014-03-14-0100 ID 1029 gen 2032 top level 275 path .snapshots/2014-03-14-0200 ID 1030 gen 2105 top level 275 path .snapshots/2014-03-14-0300 ID 1031 gen 2211 top level 275 path .snapshots/2014-03-14-0400 ID 1032 gen 2284 top level 275 path .snapshots/2014-03-14-0500 ID 1033 gen 2357 top level 275 path .snapshots/2014-03-14-0600 ID 1035 gen 2430 top level 275 path .snapshots/2014-03-14-0700 ID 1036 gen 2506 top level 275 path .snapshots/2014-03-14-0800 ID 1037 gen 2587 top level 275 path .snapshots/2014-03-14-0900 ID 1038 gen 2667 top level 275 path .snapshots/2014-03-14-1700 ID 1039 gen 2774 top level 275 path .snapshots/2014-03-14-1800 ID 1040 gen 2879 top level 275 path .snapshots/2014-03-14-1900 ID 1041 gen 2982 top level 275 path .snapshots/2014-03-14-2000 ID 1042 gen 3088 top level 275 path .snapshots/2014-03-14-2100 ID 1043 gen 3193 top level 275 path .snapshots/2014-03-14-2200
Morning of the third day:
# btrfs sub list /home ID 275 gen 4602 top level 5 path home ID 1021 gen 4558 top level 275 path .snapshots ID 1025 gen 1775 top level 275 path .snapshots/2014-03-13-2300 ID 1027 gen 1876 top level 275 path .snapshots/2014-03-14-0000 ID 1028 gen 1961 top level 275 path .snapshots/2014-03-14-0100 ID 1029 gen 2032 top level 275 path .snapshots/2014-03-14-0200 ID 1030 gen 2105 top level 275 path .snapshots/2014-03-14-0300 ID 1031 gen 2211 top level 275 path .snapshots/2014-03-14-0400 ID 1032 gen 2284 top level 275 path .snapshots/2014-03-14-0500 ID 1033 gen 2357 top level 275 path .snapshots/2014-03-14-0600 ID 1035 gen 2430 top level 275 path .snapshots/2014-03-14-0700 ID 1036 gen 2506 top level 275 path .snapshots/2014-03-14-0800 ID 1037 gen 2587 top level 275 path .snapshots/2014-03-14-0900 ID 1038 gen 2667 top level 275 path .snapshots/2014-03-14-1700 ID 1039 gen 2774 top level 275 path .snapshots/2014-03-14-1800 ID 1040 gen 2879 top level 275 path .snapshots/2014-03-14-1900 ID 1041 gen 2982 top level 275 path .snapshots/2014-03-14-2000 ID 1042 gen 3088 top level 275 path .snapshots/2014-03-14-2100 ID 1043 gen 3193 top level 275 path .snapshots/2014-03-14-2200 ID 1044 gen 3305 top level 275 path .snapshots/2014-03-14-2300 ID 1045 gen 3418 top level 275 path .snapshots/2014-03-15-0000 ID 1046 gen 3529 top level 275 path .snapshots/2014-03-15-0100 ID 1047 gen 3640 top level 275 path .snapshots/2014-03-15-0200 ID 1048 gen 3754 top level 275 path .snapshots/2014-03-15-0300 ID 1049 gen 3872 top level 275 path .snapshots/2014-03-15-0400 ID 1050 gen 3986 top level 275 path .snapshots/2014-03-15-0500 ID 1052 gen 4102 top level 275 path .snapshots/2014-03-15-0600 ID 1053 gen 4216 top level 275 path .snapshots/2014-03-15-0700 ID 1054 gen 4331 top level 275 path .snapshots/2014-03-15-0800 ID 1055 gen 4445 top level 275 path .snapshots/2014-03-15-0900 ID 1056 gen 4558 top level 275 path .snapshots/2014-03-15-1000
As you can see, it has removed the first two snapshots. Since all three snapshots for the first day were in the last quarter of the day, that is the correct behaviour. Tomorrow we will have a much better demonstration that it is 100% working as it should. To see the cron job go to part 2 of this series. To get the Python script, go to Github.
One response to “Exploring btrfs for backups Part 3: The Script in Practice”
Exploring btrfs for backups Part 3: The Script in Practice http://t.co/QmIWCChJ32