HWNEP0131I The host definition for host host name on subsystem Subsystem contains additional Hostports WWPNs that will also be assigned to Volume VolumeID .
Explanation
The selected hostport is part of a host definition on the subsystem that contains additional hostports. These additional hostports will also be assigned to the volume and can access the volume.
Action
If the volume must not be accessible through the additional hostports use the subsystem element manager and change create separate host definitions for the hostports.