NetBackup status code: 6623
Message: Failed to connect to the application server or the backup host. The server is either shut down or not reachable.
Explanation: This error can occur because of the following reasons:
The application server is either shut down or it is not reachable.
The application server was unable to establish a connection with the backup host.
Recommended Action: Verify and resolve any network connectivity issues. Ensure that the application server and the backup host are up and running.
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