You can use WORM (Write-Once-Read-Many) media to protect key data from unwanted modification or to meet compliance regulations.

NetBackup uses the QIC/WORM tape format for WORM media. This format lets NetBackup append images to WORM tape.

See "Media Formats" in the NetBackup Administrator's Guide for Windows, Volume II.

Tape error recovery is disabled for WORM media. NetBackup has job resume logic, which tries to resume a job that has been interrupted (such as an interruption on the fibre channel). However, NetBackup fails a job that uses WORM media and then retries the failed job. Symantec recommends that you use checkpoint and restart for backups.

The bplabel command labels only LTO-3 WORM tapes. All other WORM media cannot be labeled because the label cannot be overwritten when the media is used.