Hello,
Did you set the Database logging to simple ? If it is set to Full the logfiles tend to explode. An other thing could be that you get a lot of events. The combination is lethal.
I've seen the SIM server using the full 100Mb link to the SQL server. You could also do a database check in the comamdnline on the SIM server type MXCONFIGREPO -c. for a database check. If you see corruption use the -f option to fix your database errors.
Kind regards,
Andrew
