Explanation: On a request to change the device configuration, the specified device path or device name was not valid.
To avoid configuring invalid device paths and device names, use the Device Configuration wizard (on supported device discovery platforms). The wizard automatically configures device paths and device names.
On Windows hosts, check the operating system configuration or registry for device names and refer to the tpconfig command in NetBackup online help. Information for UNIX and Linux hosts is available
See the NetBackup Device Configuration Guide.
Always use no-rewind device files for drives that are attached to UNIX and Linux hosts. Check to ensure that the specified device paths exist as character-special files. Check for detailed errors from the command or the user interface output.