Hp 3000 Enterprise Virtual Array Manuel d'utilisateur Page 108

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Vue de la page 107
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0040a
Figure 52 228481–002/22481–003 PDU ass emb ly
1. mounting brackets
2. cord retention brackets
3. grounding cables
PDMs
There ar
e eight PDMs mounted in the rear of each rack:
Four mounted on the left vertical rail connect to PDU 1.
Four mounted on the right vertical rail connected to PDU 2.
Each PD
M has six AC receptacles and two thermal circuit breakers. The PDMs distribute the AC power
from the PDUs to the enclosures. Two power sources exist for each controller pair and drive enclosure. If
a PDU fails, the system will remain operational.
CAUTIO
N:
The AC p
owerdistributionwithinarackensuresabalancedloadtoeachPDUandreducesthepossibility
of an overload condition. Changing the cabling to or from a PDM could cause an overload cond ition.
HP supports only the AC power distributions dened in this user guide.
108
Storage system hardware components
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