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?

During the full backup the bacula-fd.exe process on one windows host has the 
following memory statistics (from Process Explorer)

Private Bytes 9.884 K
Peak Private Bytes 688.128 K
Virtual Size 120.144 K
Page Faults 234.738
Page Fault Delta 0

Regards,
Patrick







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