Hello,
This sounds like an interesting problem, and yet another incompatibility or
complication thrown in by Microsoft. I am aware of their new deduplication
feature (the press seems pretty unenthusiastic about it), but if it requires
changes to backup programs, Bacula including the Bacula Enterprise one
for sale will be totally ignorant of these changes, so please don't
spend your
money for nothing (though it is a very small price).
Can you explain to me why the size of the files are listed as 0 bytes? Any
reasonable underlying OS deduplication system should be totally transparent
to application programs or service programs such as Bacula, so I don't see
why the sizes would be zero. It sounds like Microsoft requires the
application
to do something special to have the files rehydrated -- if so, it is one
of their
worst farces since Vista.
Best regards,
Kern
On 08/05/2013 10:20 AM, Bojan Zdrnja (SANS ISC) wrote:
Hi,
I just installed Bacula server on a Linux box and I'm testing various
clients.
I have a Windows Server 2012 machine which has deduplication enabled
(https://blogs.technet.com/b/filecab/archive/2012/05/21/introduction-to-data-deduplication-in-windows-server-2012.aspx?Redirected=true).
This is a new feature in Windows Server 2012 which does chunk based
deduplication.
It saves quite a bit of disk space.
I installed the latest free Bacula client for Windows (5.2.10, 64-bit).
The problem is that the backups are incomplete. The client goes over
all files, but most of files are 0 bytes on the server. When trying to
restore them, I get a 0 byte file as well.
This can be seen from the backup's report as well - it says 1 GB total
while the total amount of files is about 50 GB.
Does anyone know if the latest version of the client (6.0.6) works OK
with Windows Server 2012 that has deduplication turned on? I don't
mind buying it, of course, but would like to know that it works ok :)
Or if there is a setting that might help with the free version. When I
disable VSS I get the same results as when it is enabled.
Thanks,
Bojan
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