Connecting Dae2P Power Cords (Cx300/Cx500 Storage System) - EMC CLARiiON DAE2P Hardware Reference Manual

Figure 2-2
CX300- or CX500-Series configuration.
Power
OFF
O
I
Cord
ON
OFF
O
I
ON
Master
Switch
OFF
O
I
ON
Power/
Cooling
Module B
240 V
SPS B

Connecting DAE2P power cords (CX300/CX500 storage system)

Figure 2-2
b. Highly available, write-caching configurations require that
you connect the first disk enclosure in a storage system (EA 0,
bus 0) to a Standby Power Supply (SPS) for enclosure power.
An integrated disk-and-processor enclosure, such as a CX300 or
CX500-series DPE2, is always the first disk enclosure on the first bus
(0,0). You should not connect any DAE in a DPE2 configuration to an
SPS.
shows the power cord connections for a typical
DAE2P
EXP PRI
B #
EXP PRI
PRI EXP
A
#
PRI EXP
DAE2P
EXP PRI
B #
EXP PRI
PRI EXP
A
#
PRI EXP
DAE2P
EXP PRI
B #
EXP PRI
PRI EXP
A
#
PRI EXP
SP A
SP B
Installing a DAE2P/DAE3P
OFF
O
I
ON
OFF
O
I
ON
OFF
O
I Power/
ON
Cooling
Module A
240 V
SPS A
EMC3207
Connecting AC Power
SPS + -
2-7