Explanation: The host where the mount request was initiated is denied access to the media. It is denied due to defined permissions for the volume pool in which the media ID is contained.
Query the volume pool information for the requested volume pool on the host where the mount request was issued by running vmpool -listall -b. Check the system log to obtain the name of the host where the mount request originated. This host name is the one returned by the system hostname(1) command.
Change the volume pool host name security with vmpool or another user interface that supports volume pool host attributes. Or change the volume pool that is associated with the volume (if it is not assigned). Or log in to the host that is allowed to use media in the targeted volume pool. Then, submit the mount request again.