Hi Gandalf, Not with v4. V4 uses reverse deltas, so your most recent backup is a filled, or complete backup.
V4 calculates the difference between today and yesterday, and so on backwards. Just think of it as incrementals going back in time and carrying your full with you each day. You have a full basket of goodies each day and leave a trail behind you. You can also have older filled backups to reduce restore time as it lessens the calculations BackupPC must perform. So, if you have a complete trail of incrementals going back two weeks there is no data loss in that time period. If I am incorrect in any way in my analogy I am sure the list will correct me and we will both learn. Kind regards, mph > On Feb 13, 2020, at 3:49 AM, Gandalf Corvotempesta > <gandalf.corvotempe...@gmail.com> wrote: > > Just a confirm: > > if I have a full backup done on 2020-01-14 (doing 1 full each month) > and daily incrementals, keeping up to 14 incrementals, I have data > loss ? > > In example, the incremental done yesterday (2020-02-12), is relative > to the incremental done on 2020-01-14 ? > > How does it work, exactly ? I have some "broken chain" ? > > With bacula, in example, I need at least 1 full backup and then each > incremental after it, to restore from yesterday. When using > differentials, I need 1 full, all differential, and all incrementals > > > _______________________________________________ > BackupPC-users mailing list > BackupPC-users@lists.sourceforge.net > List: https://lists.sourceforge.net/lists/listinfo/backuppc-users > Wiki: http://backuppc.wiki.sourceforge.net > Project: http://backuppc.sourceforge.net/ > _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
