DNZVMX020E: The operation cannot be performed because user user_name does not have the required authority on the Xen host system.
Explanation: See the message.
Operator Response: Verify the authority needed to perform the task and ensure that your user role has sufficient authority to perform the task.
Remove the Xen host system and rediscover it using the System Discovery and Request Access tasks.
The error log might contain additional information about the problem.