On 2014-11-29 02:43 AM, Patrick wrote:
> Hi Josh,
>
> Thanks for your reply.
>
>> You can try to isolate the problem. Try running a Windows backup with
>> VSS, compression, and encryption all turned off. Compare a Windows VM
>> against a Linux VM on the same host if possible.
> I don’t use compression or encryption, but VSS. I disabled VSS and get about 
> 40 MByte/s. If I also set acl support = no, I get about 43 MByte/s.
> It’s better, but far away from the 90 MByte/s from a linux box with similar 
> data.
>
> Last night I have took a look at the bacula console during the full backups 
> and could see one Windows clients with 65 MByte/s. This server hosts a SQL 
> Server with big database dump files. The Bacula File Daemon is faster with 
> big files.
>
> How can I tune the Bacula File Daemon to increase the transfer rate for a lot 
> of small files? Can I set the maximum memory usage? Is a ramdisk which 
> collects the files from the hard drive and send it as bunches to bacula 
> possible?

More than likely you are running in to Windows NTFS limitations, not 
Bacula limitations.  NTFS has never been the fastest filesystem 
especially with lots of small files.

Bryn

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