Front Domain Consolidation; Supported Configurations And Platforms; Edge Sans Connected Through A Backbone Fabric - HP AE370A - Brocade 4Gb SAN Switch 4/12 Administrator's Manual
Hp storageworks fabric os 5.2.x administrator guide (5697-0014, may 2009)
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Table of Contents
Figure 10
shows another metaSAN consisting of a host in Edge SAN 1 connecting to storage in Edge SAN
2 through a backbone fabric connecting two 4/256 SAN Directors, each containing B-Series MP Router
blades.
Figure 10
Edge SANs connected through a backbone fabric
4/256 SAN Director
with B-Series
MP Router blade
EX_Port
E_Port
= LSAN
Front domain consolidation
Fabric OS v5.2.x provides front domain consolidation. With this feature, one front domain from a single
FCR is projected to the edge fabric regardless of the number of EX_Ports connected from that router to the
edge fabric. The front domain is consolidated only within the FCR switch. Another router connected to the
same edge fabric projects a different front domain.
The FCR switch is connected to the edge fabrics via EX_Ports or VEX_Ports. On prior FCR releases (XPath
v7.1.2, v7.3, v7.4 and Fabric OS v5.1) every EX_Port connecting to an edge fabric projects its own front
domain. For example, if there are three EX_Ports connected from the router to the edge fabric, there will be
three front domains projected to the edge fabric.
Front domain consolidation conserves resources on the FCR switch. Expanded use of FCR switches with
multiple EX_Ports connected to the same edge fabric raises the overhead of projecting a front domain for
each EX_Port and quickly uses up resources within the edge fabric and resource consumption on the FCR.
In previous releases, every EX_Port connected to the same edge fabric had a unique domain and unique
domains require separate WWNs. With front domain consolidation, the domain is same for all ports
connected to same edge fabric from the FC-FC Router, so in this case the WWN will be the same.
Supported configurations and platforms
In an edge fabric that contains a mix of AD-capable switches and switches that are not aware of AD, FCR
should be connected directly to the AD-capable switch. For more information, see
domains with LSAN Zones and
The supported configurations are:
•
FCR connected to an HP nonsecured fabric
•
FCR connected to an HP secured fabric
•
FCR connected to a McDATA Open mode
•
FCR connected to a McDATA Fabric mode
•
FCR connected to a HP secured and non secured fabrics with EX_Port trunking enabled
•
Can interoperate with older FCR switches (XPath v7.4.x and Fabric OS v5.1)
202 Using the FC-FC routing service
ISL
Backbone
Fabric
IFL
Edge SAN 1
FCR" on page 216.
4/256 SAN Director
with B-Series
MP Router blade
EX_Port
IFL
E_Port
Edge SAN 2
25314a
"Use of administrative
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Troubleshooting
