I have a file server/application server running windows server 2003. My users are reporting that the server is becoming unresponsive at times. It eventually speeds up again. When looking a task manager, nothing seems to be taking much processing power (nothing consistantly above 5%. The highest memory being used is dfsr.exe (117,088K). The server appears to have plenty of memory. My gut feeling is it could be a drive write/read issue. I did get a warning from Dell Open manage saying that the battery has failed on the PERC controller. I have a battery ordered. Could this be the cause of the issue? If not, what other things should I be looking at?