Write once, read many (WORM) data storage is used for archiving data that requires a long retention period. Data can be written to WORM media one time only. After that, the media can be appended to, but it cannot be overwritten, erased, or reformatted.
After the WORM media has been written to one time, you cannot move it to the Scratch media set. You can move WORM media to the Retired Media set to delete it from Backup Exec, but you cannot erase it or reformat it.
You can use WORM media for ad hoc backup jobs and for backup jobs created from policies. When you select the option Use Write once, read many (WORM) media, Backup Exec confirms that the destination device is or contains a WORM-compatible drive, and that the WORM media is available in the drive. If WORM media or a WORM-compatible drive is not found, an alert is sent.