Now, the darkness is leaving. Look, lately, the server do not concurre in this situation (about slow performance), because... somebody clean up the Application Log of Windows...
Ok, there is not defined alerts on the server but still there are jobs like backups and restores and SQL Books on Line says the next by "solve problems...
Thank you Chris for your answer, but just a few commnets about this problem: I can understand that CPU and Disk I/O can grow continuosly, but I think that the...