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21
Fibre Channel routing concepts
•
•
460
NOTE
Backbone fabrics that share connections to the same edge fabrics must have unique
backbone fabric IDs.
MetaSAN
A metaSAN is the collection of all SANs interconnected with Fibre Channel routers.
A simple metaSAN can be constructed using an FC router to connect two or more separate
fabrics. Additional FC routers can be used to increase the available bandwidth between fabrics
and to provide redundancy.
Figure 70
shows a metaSAN consisting of a host in Edge SAN 1 connected to storage in Edge
SAN 2 through a backbone fabric connecting two FC routers.
FC router
EX_Port
E_Port
= LSAN
FIGURE 70
Edge SANs connected through a backbone fabric
Phantom domains
A phantom domain is a domain emulated by the Fibre Channel router. The FC router can
emulate two types of phantom domains: front phantom domains and translate phantom
domains. For detailed information about phantom domains, see
page 462.
ISL
Backbone
fabric
IFL
Edge SAN 1
FC router
EX_Port
IFL
E_Port
Edge SAN 2
"Phantom domains"
Fabric OS Administrator's Guide
on
53-1001763-02
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