The present invention provides a recording and reproducing apparatus for recording and reproducing any of video data, audio data, and realtime metadata corresponding to any of the video data and the audio data by use of a random-accessible recording medium. The method includes the operation of taking a snapshot of an active application. Communication information including image attributes, email addresses, and names of the recipients is stored. The automatic-setting modular program acquires the server blade information from the management blades, turns on the powers of the server blades, and acquires the FC switch information from the FC switches.