You can use the zone server to access zone membership as well as port information. The fcp zone show command enables you to view the active zone set on the fabric connected to the target port and to verify the zoning information on the fabric zone server.
system1> fcp zone show 4a Active Zone Set on adapter 4a: Zone Set Name: sanset (1 zones) Zone Name: testzone Member Port Name: 10:00:00:00:c9:2d:60:dc Member Port Name: 50:0a:09:82:87:09:2b:7d Member Port ID: 0x650003 Member Fabric Port Name: 20:07:00:0d:ec:00:22:80