File backup software for enterprise data center.
The file backup software approach is core to Bacula. This means that Bacula will always consider complete files (with owner, group and permission attributes) when it runs a file backup job. For instance, an incremental file backup will check if a file has changed and, if this is true, the complete file will be transferred to the Storage Daemon and be written to volume.
There are however, cases in which this is undesirable:
- when you have big files of which only a small portion changes;
- when you have a lot of similar or even identical files and you do not want to transfer them over and over again.