SLD log files ( delete )

Hi Guys,

We have a client whose SLD log file is approx 4GB.

Can we delete the log SLD files from path : ..\SAP\SAP Business One ServerTools\System Landscape Directory\apache-tomcat-6.0.35\logs

and do you have any idea as to how we can prevent the file from growing?

Thanks in advance!
Regards,
Darius