Re: [Bacula-users] [Storage-Space usage] Prevent duplicate file-backups?

2006-10-26 Thread Tijl Van den Broeck
It would indeed be a great space saving feature. But I wouldn't place my bet only on md5sums, it has been proven that there -could- occur false matches. There has to be some additional checking as well, starting with the filename. The chances of a duplicate md5sum in the same filename, while

Re: [Bacula-users] [Storage-Space usage] Prevent duplicate file-backups?

2006-10-26 Thread Hristo Benev
Tijl Van den Broeck wrote: It would indeed be a great space saving feature. But I wouldn't place my bet only on md5sums, it has been proven that there -could- occur false matches. There has to be some additional checking as well, starting with the filename. The chances of a duplicate

Re: [Bacula-users] [Storage-Space usage] Prevent duplicate file-backups?

2006-10-26 Thread John Drescher
I have seen this discussed in this list before and I believe there are several problems on top of the small chance that a file will have the same size and same md5sum but different contents. One is do we only search (for dups) in the current backup job or volume or do we include other backups and

Re: [Bacula-users] [Storage-Space usage] Prevent duplicate file-backups?

2006-10-26 Thread Hristo Benev
John Drescher wrote: I have seen this discussed in this list before and I believe there are several problems on top of the small chance that a file will have the same size and same md5sum but different contents. One is do we only search (for dups) in the current backup job or volume or do we

[Bacula-users] [Storage-Space usage] Prevent duplicate file-backups?

2006-10-25 Thread Jens Classen
Hello list! I could not find hints towards this in the manual, and wonder if this can be done with bacula: I would like to prevent duplicate files from being backuped to the Storage. For example: User A has a zip-File in his Download folder, and the same zip-File in his user folder. Can I

Re: [Bacula-users] [Storage-Space usage] Prevent duplicate file-backups?

2006-10-25 Thread Hristo Benev
Jens Classen wrote: Hello list! I could not find hints towards this in the manual, and wonder if this can be done with bacula: I would like to prevent duplicate files from being backuped to the Storage. For example: User A has a zip-File in his Download folder, and the same zip-File in