I am running Windows Server 2003 SP1 and Veritas Netbackup Server 5.1 MP2.
And using as a File Server.

After some days it becomes very slow need to restart after and after restart
works fine for some days then again very slow.

No entry generates in System event log and while slow we are not able to
log in through the remote desktop on server.

Pls help to resolve the problem.