This is mostly a section on posting guides, not requesting them.. and a few guides already exist related to methods of backing up.
It is up to you to adapt them to your situation or environment, if possible.
http://www.daemonforums.org/showthread.php?t=2238
http://www.daemonforums.org/showthread.php?t=3156
System Diagnostics is rather vague, what sort of information are you interested about?