Hitachi Universal Storage Platform VM, Руководство по планированию установки

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Installation Requirements
2–21
Hitachi Universal Storage Platform VM Installation Planning Guide
Power Connection
The AC power input for the Universal Storage Platform VM has a duplex PDU
structure. This duplex structure enables the entire rack to remain powered
on if power is removed from one of the two power distribution panels
(PDPs).
•
Direct connection to power. Figure 2-12 shows the power
connections when the AC input lines are connected directly to the
power facility.
•
• Power connection through UPS. Figure 2-14 shows the power
connections when half of the AC input lines are connected to an
uninterruptible power supply (UPS), and the other half of the AC input
lines are connected directly to the power facility.
•
CAUTION! When installing the USP VM, connect the AC cables
between the PDUs and PDPs correctly. Otherwise, a system failure
occurs when one of the AC inputs is interrupted. Figure 2-12 shows
the correct connections (drawing on the left) and incorrect
connections (drawing on the right).
WARNING! Figure 2-13 describes a dangerous and incorrect power
cabling method for connecting the DKC within the primary rack.