A system-level index, called the optical index database, keeps track of all optical volumes and directories known to the system.
The optical index database includes the optical volume index (QAMOVAR) and the optical directory index (QAMOPVR) physical files. You can use the Reclaim Optical (RCLOPT) command to re-create the optical index database if it is ever damaged or destroyed or whenever volumes that you know are in an optical media library, CD-ROM, or DVD device are reported as not found. To run the RCLOPT command, either select option 2 (Reclaim optical index) on the Optical Backup/Recovery display or enter the RCLOPT command. Doing either causes the Reclaim Optical (RCLOPT) display to appear.