[Samba] Samba metrics gathering?

[Marc Donnelly]

I was wondering if there is a way to monitor and gather metrics for 
Samba.  We would love a solution that would be able to plot the number 
of connected users, file usage, samba server load, etc.  Does anyone 
have any of these tools or any suggestions?

Something similar to smbstatus but with more information and the 
ability to output (for graphing and logging).

-marc