HP StorageWorks 4400 Enterprise Virtual Array user ... - BUSINESS IT
HP StorageWorks 4400 Enterprise Virtual Array user ... - BUSINESS IT
HP StorageWorks 4400 Enterprise Virtual Array user ... - BUSINESS IT
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CAUTION:<br />
The AC power distribution within a rack ensures a balanced load to each PDU and reduces the<br />
possibility of an overload condition. Changing the cabling to or from a PDM could cause an overload<br />
condition. <strong>HP</strong> supports only the AC power distributions defined in this <strong>user</strong> guide.<br />
2<br />
3<br />
1<br />
0131a<br />
1. Power receptacles<br />
2. Thermal circuit breakers<br />
3. AC power connector<br />
Figure 19 Rack PDM<br />
Rack AC power distribution<br />
The power distribution in an <strong>Enterprise</strong> <strong>Virtual</strong> <strong>Array</strong> rack is the same for all variants. The site AC<br />
input voltage is routed to the dual PDU assembly mounted in the rack lower rear. Each PDU distributes<br />
AC to a maximum of four PDMs mounted on the left and right vertical rails (see Figure 20).<br />
PDMs 1 through 3 connect to receptacles A through D on PDU 1. Power cords connect these PDMs<br />
to the number 1 drive enclosure power supplies and to the Controller 1 enclosure.<br />
PDMs 4 through 6 connect to receptacles A through D on PDU 2. Power cords connect these PDMs<br />
to the number 2 drive enclosure power supplies and to the lower controller enclosure.<br />
NOTE:<br />
The locations of the PDUs and the PDMs are the same in all racks.<br />
<strong>HP</strong> <strong>StorageWorks</strong> <strong>4400</strong> <strong>Enterprise</strong> <strong>Virtual</strong> <strong>Array</strong> <strong>user</strong> guide 31