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5
Power Supply
5.1
Power Supply Units
The PRIMERGY SX30 storage subsystem contains one power supply unit that
guarantees the power supply to all the fitted components. The second slot
(2 power supply units as a standard with the dual-node version) is equipped with
a dummy unit.
I
To guarantee a redundant power supply, a second power supply unit
must be added. If one power supply unit fails, the system will carry on
running.
Figure 11: PRIMERGY SX30 Storage Subsystem with two Power Supply Units (Rack Model)
The power supply units are supplied with mains voltage via the supplied
connecting leads.
Power supply units (1) and (2) can be connected directly to two different phases
of the in-house circuit in order to achieve phase redundancy (see
Connection with Phase Redundancy” on page 64
).
