Explanation: This error occurs when a Media and Device Management command fails during a Vault job.
Recommended Action: For the actual error that caused the command to fail, review the Vault debug log in the following directory:
UNIX and Linux: /usr/openv/netbackup/logs/vault Windows: install_path\NetBackup\logs\vault
Also review the summary.log in each of the sidxxx directories that had problems:
UNIX and Linux: /usr/openv/netbackup/vault/sessions/vault_name/sidxxx Windows: install_path\NetBackup\vault\sessions\vault_name\sidxxx
Try running the command (with the same arguments as in the log file) to see the actual error. Ensure that the Media and Device Management daemons are running. Also ensure that the robot is functional and you can communicate with it (for example, inventory the robot through the GUI).