HP EVA3000 User Manual Page 81

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Figure 27 Rack AC power distribution
1. PDM1 2. PDM2
3. PDM 3 4. PDU 1
5. PDM 4 6. PDM 5
7. P D M 6
8. PDU 2
Rack System/E power distribution components
AC power is distributed to the Rack System/E rack through Power Distribution Units (PDU) mounted on the
two vertical rails in the rear of the rack. Up to four PDUs can be mounted in the rack—two mounted
ontherightsideofthecabinetandtwomountedontheleftside.
Each of the PDU power cables has an AC power source specic connector. The circuit breaker-controlled
PDU outputs are routed to a group of ten AC receptacles. The storage system components plug directly
into the PDUs.
Rack AC
power distribution
The power distribution cong uration in a Rack System/E rack depends on the number of storage systems
installed in the rack. If one storage system is installed, only two PDUs are required. If multiple stora ge
s ystems are installed, four PDUs are required.
The site AC input voltage is routed to each PDU mounted in the rack. Each PDU distributes AC through
ten re
ceptacles directly to the storage system components.
PDUs 1 and 3 (optional) are mounted on the left side of the cabinet. Power cords connect these
PDUs to the number 1 drive enclosure power supplies a nd to the controller enclosures.
PDUs
2 and 4 (optional) are mounted on the right side of the cabinet. Power cords connect these
PDUs to the number 2 drive enclosure power supplies a nd to the controller enclosures.
HP StorageWorks 3000/5000 Enterprise Virtual Array user guide (VCS 4.xxx)
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