Patent ID: 6564231
Filing Date: 2003-05-13
Classification: G06F,Y10S

Abstract:
A method of managing files in an optical disk library storing many optical disks recording data as files, comprising a plurality of playback or recording/playback devices for said data storing optical disks, and comprising a conveying device for conveying said data storing optical disks to the playback or recording/playback device to be inserted/removed, the method comprising:recording a playback request of a file in the optical library whenever access to the file is requested; creating frequency information of playback request of each file according to the recorded playback request; selecting a file which is judged to have very frequent playback requests compared to other files recorded in the optical disk according to the frequency information of playback request, simultaneously at a plurality of sets of specified time intervals or when the number of the playback requests reaches a specified value; and wherein the selected file is copied in another optical disk in the optical disk library according to a weighted playback request frequency in a long term and in a short term.