XI Server Cleanup

Hi,

I have been using an instance of XI server which have been used by many in the past. Hence the server has got slow. Now I need to clean up the server.

Experts, please let me know how do I go about cleaning the server. I would need to clear the objects create from IR, ID, SLD, the log entries and everything else that clogging the server. Also I want to keep the backup of the IR, ID and SLD objects. Are their any <b>dependencies</b> that I need to take care of while deleting the objects?

Regards

Ke N