Technical data

Planning a Subsystem 1–25
Figure 1–14. Limiting host access in multiple-bus failover mode
CXO7078B
Host
port 1
active
Host
port 2
active
Host
port 2
active
Host
port 1
active
D100 D101 D120
D0 D1
D2
Host 1
"RED"
Controller A
Controller B
All units visible to all ports
FCA1 FCA2
Host 2
"GREY"
FCA1 FCA2
Host 3
"BLUE"
FCA1 FCA2
Connections
RED1B1
GREY1B1
BLUE1B1
Connections
RED2A2
GREY2A2
BLUE2A2
Connections
RED2B2
GREY2B2
BLUE2B2
Connections
RED1A1
GREY1A1
BLUE1A1
Switch
or hub
Switch
or hub
NOTE: FCA = Fibre Channel Adapter