You may need to monitor the filer resources usages when you are investigating/evaluating applications load on filer hosted storage.
setenv">user1@gmd:/u/setenv">user1>sudo ssh FilerUSA1 options cifs.per_client_stats.enable on
setenv">user1@gmd:/u/setenv">user1>sudo ssh FilerUSA1 cifs stat –h <client-ip-address*> 5
setenv">user1@gmd:/u/setenv">user1>sudo ssh FilerUSA1 sysstat 5
*
<client-ip-address>: is the ip-address of the machine where from your software runs and puts load on the filer.