HP StorageWorks 8/80 HP StorageWorks Fabric OS 6.1.x administrator guide (5697 - Page 158

AD3 WWN = 10:00:00:00:c7:2b:fd:a3 WWN = 10:00:00:00:c2:37:2b:a3 Domain ID = 1 WWN = 10:00:00:05:1f:05:23:6f Domain ID = 2 WWN = 10:00:00:05:2e:06:34:6e AD4 WWN = 10:00:00:00:c8:3a:fe:a2 Figure 7 Fabric showing switch and device WWNs Figure 8 shows the filtered view of the fabric as seen from AD3 and AD4. The switch WWNs are converted to the NAA=5 syntax; the device WWNs and Domain IDs remain the same. Fabric Visible to AD3 User WWN = 10:00:00:00:c7:2b:fd:a3 WWN = 10:00:00:00:c2:37:2b:a3 Domain ID = 1 WWN = 50:00:51:f0:52:36:f9:03 Domain ID = 2 WWN = 50:00:52:e0:63:46:e9:03 Fabric Visible to AD4 User Domain ID = 1 WWN = 50:00:51:f0:52:36:f9:04 WWN = 10:00:00:00:c2:37:2b:a3 Domain ID = 2 WWN = 50:00:52:e0:63:46:e9:04 WWN = 10:00:00:00:c8:3a:fe:a2 Figure 8 Filtered fabric views showing converted switch WWNs Admin Domain compatibility and availability Admin Domains maintain continuity of service for Fabric OS features and operate in mixed-release fabric environments. High Availability is supported with some backward compatibility. The following sections describe the continuity features of Admin Domain usage. Admin Domains and merging When an E_Port comes online, the adjacent switches merge their AD databases. The receiving switch accepts an AD database from the neighboring switch only if the local AD database is empty or if the new AD database exactly matches both the defined and effective configurations of the local AD database. If the AD database merge fails, the E_Port is segmented with "AD conflict" error code. 158 Managing administrative domains