DNZVSS215E: Cannot edit the shared storage pool. All VIOS virtual servers in the shared storage pool might be Offline or access to the VIOS virtual servers has not been properly configured.
Explanation: At least one VIOS virtual server in the selected shared storage pool must be active. The Access state of an active VIOS is OK. Access state values other than OK might indicate there is a problem communicating with the VIOS.
Operator Response: Ensure that there is at least one active VIOS virtual server in the selected shared storage pool and try this again.