The wiring diagram for cabling a three-phase power distribution unit (PDU) shows power cable connections between the PDUs and the Oracle FS System components that are load balanced between the PDU outlet groups.
The wiring diagrams for PDU cabling and the current load shown is representative and includes a DE2-24C Drive Enclosure (4U), a DE2-24P Drive Enclosure (2U), two Controllers, and two Pilots. Different component configurations within an Oracle FS System provide different results. For example: Drive Enclosures with SSD drives have a lower power usage than any Drive Enclosure with SAS HDDs.
The wiring diagram illustrates the cabling of a single PDU. The second redundant PDU must be cabled identically. Cable connections to the PDU must be managed so that no outlet group exceeds 20 A. For cabling three-phase PDUs, the load must be balanced between the three phases. The PDU groupings are reversed from one side to the other. From the back of the system, the PDU grouping to the right is 0 - 5 from top down. The PDU grouping to the left side is 5 - 0 from top down.
Figure 1: Wiring Diagram: Three-phase PDU cabling
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1 AC lines in 2 Three-phase pre-installed PDU 3 Representative Oracle FS System