
Fabric OS 5.3.0 administrator guide 157
Figure 7
Filtered fabric views showing converted switch WWNs
Admin domain compatibility and availability
Admin Domains maintain continuity of service for Fabric OS 5.2.x features and operate in mixed-release
fabric environments. High availability is supported along 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.
Compatibility
Admin Domains can be implemented in fabrics with mix of AD-aware switches and AD-unaware switches.
The following considerations apply:
•
In mixed-fabric configurations, the legacy switches allow unfiltered access to the fabric and its devices;
hence, these legacy switches should be managed by the physical fabric administrator.
•
You must zone all ports and devices from legacy switches in the AD0 root zone database.
•
If you have legacy switches in your AD-activated fabric, you must ensure that all new AD resources have
enough interconnectivity so that they do not get isolated into subfabrics with a legacy subfabric
interposed in the middle, as shown in
Figure 8
.
Fabric Visible to AD3 User
Fabric Visible to AD4 User
WWN = 10:00:00:00:c8:3a:fe:a2
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:c2:37:2b:a3
Domain ID = 2
WWN = 50:00:52:e0:63:46:e9:03
Domain ID = 1
WWN = 50:00:51:f0:52:36:f9:03
WWN = 10:00:00:00:c7:2b:fd:a3
Domain ID = 1
WWN = 50:00:51:f0:52:36:f9:04
Summary of Contents for AA979A - StorageWorks SAN Switch 2/8V
Page 1: ...HP StorageWorks Fabric OS 5 3 x administrator guide Part number 5697 0244 November 2009 ...
Page 16: ...16 ...
Page 20: ...18 ...
Page 24: ...24 Introducing Fabric OS CLI procedures ...
Page 116: ...118 Maintaining configurations ...
Page 170: ...172 Managing administrative domains ...
Page 200: ...202 Installing and maintaining firmware ...
Page 222: ...224 Routing traffic ...
Page 274: ...286 Administering FICON fabrics ...
Page 294: ...306 Working with diagnostic features ...
Page 350: ...362 Administering Extended Fabrics ...
Page 438: ...440 Configuring the PID format ...
Page 444: ...446 Configuring McData Open Fabric mode ...
Page 450: ...452 Understanding legacy password behaviour ...