[Borgbackup] understanding prune work

[Maurice Libes]

Le 06/02/2017 à 22:15, Adrian Klaver a écrit :
> On 02/06/2017 10:38 AM, Maurice Libes wrote:
>> hi to all
>> new to borgbackup since a few weeks,
>> I make some test on my own data and PC before  to set in production
>>
>> I make a backup by day, here below
>> but when I say to only keep 7 days, I dont understand why borg want to
>> prune the backup of pcml-2017-01-28  and keeping older one as
>> pcml-2017-01-15 pcml-2017-01-22  ?
>
> Because you have --keep-weekly=3. This will keep the last backup of 
> each week going back 3 weeks. pcml-2017-01-15 and pcml-2017-01-22 are 
> on Sundays which is the last day of an ISO week, so borgbackup is 
> doing what you want.
ok understood
I didn't see the things like that

ML
>
>>
>> thanks for explanation, maybe I have set some trouble during multiples
>> tests
>>
>> ML
>>
>> $ borg prune  --list --info --dry-run --keep-daily=7 --keep-weekly=3
>> borg at borgserver.myuniv.fr:/mnt/provigo-borg/sauve-pcml  --prefix "pcml"
>>
>> Keeping archive: pcml-2017-02-06                      Mon, 2017-02-06
>> 02:00:26
>>
>> Keeping archive: pcml-2017-02-05                      Sun, 2017-02-05
>> 02:00:37
>>
>> Keeping archive: pcml-2017-02-04                      Sat, 2017-02-04
>> 02:00:07
>>
>> Keeping archive: pcml-2017-02-03                      Fri, 2017-02-03
>> 11:49:57
>>
>> Keeping archive: pcml-2017-01-31                      Tue, 2017-01-31
>> 02:00:09
>>
>> Keeping archive: pcml-2017-01-30                      Mon, 2017-01-30
>> 02:00:07
>>
>> Keeping archive: pcml-2017-01-29                      Sun, 2017-01-29
>> 02:00:15
>>
>> Keeping archive: pcml-2017-01-22                      Sun, 2017-01-22
>> 02:00:13
>>
>> Keeping archive: pcml-2017-01-15                      Sun, 2017-01-15
>> 02:00:09
>>
>> Would prune:     pcml-2017-01-28                      Sat, 2017-01-28
>> 02:00:07
>>
>> borg list borg at 139.124.2.149:/mnt/provigo-borg/sauve-pcml
>>
>> pcml-2017-01-15                      Sun, 2017-01-15 02:00:09
>>
>> pcml-2017-01-22                      Sun, 2017-01-22 02:00:13
>>
>> pcml-2017-01-28                      Sat, 2017-01-28 02:00:07
>>
>> pcml-2017-01-29                      Sun, 2017-01-29 02:00:15
>>
>> pcml-2017-01-30                      Mon, 2017-01-30 02:00:07
>>
>> pcml-2017-01-31                      Tue, 2017-01-31 02:00:09
>>
>> pcml-2017-02-03                      Fri, 2017-02-03 11:49:57
>>
>> pcml-2017-02-04                      Sat, 2017-02-04 02:00:07
>>
>> pcml-2017-02-05                      Sun, 2017-02-05 02:00:37
>>
>> pcml-2017-02-06                      Mon, 2017-02-06 02:00:26
>>
>>
>>
>
>

-- 
M. LIBES
Service Informatique OSU Pytheas - UMS 3470 CNRS
Batiment Oceanomed
Campus de Luminy
13288 Marseille cedex 9
Tel: 04860 90529