Connecting power
When configuring a system, do not power on the Data Domain controller until you
have powered on all of its attached shelves.
See the figures in this section that display recommended power connections for
several Data Domain systems.
Do not connect the power cables until all of the shelf cables have been properly
connected.
For redundant power distribution, use different Power Distribution Units (PDUs) to
power each side of the rack. The power supplies in each DS60 shelves are capable of
operating on 200-240 VAC, 50 Hz or 60 Hz power.
To ensure redundant AC power, each power supply of the DS60 must be fed from a
different PDU, and each PDU must be connected to a separate AC circuit. Each DS60
power supply has two power cords.
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The voltage used is specific to the site and country of installation.
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Vertical PDUs, also known as 0U PDUs, and the power plugs in non-Data Domain
racks often interfere with DS60s. In that case, rack-mounted PDUs, usually at the
bottom or top of the rack, are required.
See the Power Calculator to determine total system power requirements: https://
powercalculator.emc.com/PC3/.
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Do not exceed the current capacity of the power distribution unit by adding more
products than it can support.
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For safety of personnel and to insure proper functioning of systems, it is
recommended that each AC circuit of the power distribution unit have a double
pole AC breaker system.
Ensure that the PDU can handle the overall power load.
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The rack’s electrical distribution and earth ground bonding must meet the
requirements of UL 60950-1 and IEC 60950-1, and local electrical safety building
codes.
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The PDUs must have a sufficient quantity of single-phase power outlets with an
earth ground conductor (safety ground). A safe electrical earth ground connection
must be provided to each power cord.
Each DS60 ships with four 66" and four 160" C13/C14 PDU power cords. The shorter
power cords are used for vertical (0U) PDUs, and the longer power cords can reach
anywhere in a rack to connect to a different PDU. The C13 (IEC-60320-C13) side
connects to the DS60 power supply, and the C14 (IEC-60320-C14) side connects to
most PDUs.
Installing the Shelves
Connecting power 57
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