13
5.4.2
5.4.1
Notes:
1. I
llustrations in this document show storage system connections to EXN2000/EXN4000
expansion units. On EXN1000 expansion units, the positions of the In and Out ports
are reversed from those of the EXN2000/EXN4000.
2. This illustration shows only the two first expansion units in a loop. The number of
expansion units might be different for your configuration.
5.4
To cable the Channel A paths in a dual-node A20 (cluster), complete the
following steps, using the diagram for reference. The numbers in the
diagram correspond to the step numbers below.
5.4.1 Cable the N3300 CM-A port 0a to the first expansion unit module A
ESH2/ESH4 or AT-FCX In port.
5.4.2 Cable the N3300 CM-B port 0a to the first expansion unit module B
ESH2/ESH4 or AT-FCX In port.
5.4.3 Go to step 5.5 on page 14.
CM-A
PSU
PSU
IN
OUT
IN
OUT
PSU
PSU
IN
OUT
IN
OUT
PSU
PSU
0a
e0a
e0b
0b
CM-B
e0a
e0b
10101
10101
B
A
B
A
0a 0b
N3300
EXN
EXN