Power distribution–modular pdus – HP 6400.8400 Enterprise Virtual Array User Manual
Page 20
Power distribution–Modular PDUs
NOTE:
This section describes the most common power distribution system for EVA6400/8400s.
For information about other options, see the HP power distribution units website:
AC power is distributed to the rack through a dual Power Distribution Unit (PDU) assembly mounted
at the bottom rear of the rack. The characteristics of the fully-redundant rack power configuration
are as follows:
•
Each PDU is connected to a separate circuit breaker-protected, 30-A AC site power source
(100–127 VAC or 220–240 VAC ±10%, 50 or 60-Hz, ±5%). The following figures illustrate
the most common compatible 60-Hz and 50-Hz wall receptacles.
NEMA L5-30R receptacle, 3-wire, 30-A, 60-Hz
NEMA L6-30R receptacle, 3-wire, 30-A, 60-Hz
IEC 309 receptacle, 3-wire, 30-A, 50-Hz
•
The standard power configuration for any Enterprise Virtual Array rack is the fully redundant
configuration. Implementing this configuration requires:
◦
Two separate circuit breaker-protected, 30-A site power sources with a compatible wall
receptacle.
◦
One dual PDU assembly. Each PDU connects to a different wall receptacle.
◦
Four to eight (depending on the rack) Power Distribution Modules (PDM) per rack. PDMs
are split evenly on both sides of the rack. Each set of PDMs connects to a different PDU.
–
Eight PDMs for 42U, 47U, and 42U 5642 racks
–
Six PDMs for 36U racks
–
Four PDMs for 22U racks
◦
The drive enclosure power supplies on the left (PS 1) connect to the PDMs on the left with
a gray, 66 cm (26 inch) power cord.
◦
The drive enclosure power supplies on the right (PS 2) connect to the PDMs on the right
with a black, 66 cm (26 inch) power cord.
◦
Each controller has a left and right power supply. The left power supplies of each should
be connected to the left PDMs and the right power supplies should be connected to the
right PDMs.
NOTE:
Drive enclosures, when purchased separately, include one 50 cm black cable and one
50 cm gray cable.
20
EVA6400/8400 hardware