Hi,

We realize today that certain of our Windows backups are incomplete.

The backup log returns OK, but the size of the backuped data is clearly
not the size of the real data (7 GB backuped instead of 130 GB, with 20%
compression)

When we restore a full backup, a lot of files have a size of 0

It seems to be due to the Windows build-in deduplication, according to
this 2013 post

http://www.backupcentral.com/phpBB2/two-way-mirrors-of-external-mailing-lists-3/bacula-25/windows-server-2012-with-built-in-deduplication-122330/

Is there any workaround (newer version of Bacula, patch ?), or the only
solution is to disable the Windows deduplication ?


Regards

Norbert




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