Device configuration status code 73
Explanation: NetBackup supports tape devices on NDMP protocol versions V2, V3, and V4. For automatic device configuration, only V3 and V4 are supported.
Recommended Action:
Examine debug logs for a more detailed message on the error.
See "Setting Media Manager debug logging to a higher level" in the NetBackup Logging Reference Guide.
See your NAS vendor documentation for instructions on how to switch NDMP versions.