Hello Thorsten, On Fri, 21 Apr 2023 09:10:16 +0200 "Dr. Thorsten Brandau" <thorsten.bran...@brace.de> wrote:
> Hi > > I am running Bacula with a tape drive on an Autoloader. As the full > Backup takes about 70 h (it is a larger filesystem to backup) I want > to do differential and incremental backups. However, all Differential > and Incremental are performed as full backups. > > I am running also an Rsync script with hardlinks, where it is no > problem to have differential backups. > > It seems as the file checking of Bacula is not correct. > > Any idea how to finetune? Is it possible to understand WHY a file is > considered new? Is there any way to control this? If you are using rsync then the mtime will be set to that of the original file but the ctime will be the time when rsync copied the file. Bacula normally looks at both mtime and ctime to determine if a file has changed. There is a parameter in Bacula to change this behaviour - mtimeonly=<yes∣no> If enabled, tells the Client that the selection of - files during Incremental and Differential backups should based only - on the st_mtime value in the stat() packet. The default is no which - means that the selection of files to be backed up will be based on - both the st_mtime and the st_ctime values. In general, it is not - recommended to use this option. Note the caveat at the end of the description. > We have several backup strategies, with Rsync on different computers, > but also symmetric synching with remote hosts. > > Would a blockwise differential backup be possible? > > Or at last ignoring things like ACL or so? > > Thanks > > Cheers > > Thorsten Regards, Richard _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
