Maintain Power Supply Units; About Power Supplies; Identifying Power Supply Failures - Dell EqualLogic PS Series Hardware Owner's Manual

4 Maintain Power Supply Units

The array supports two hot-swappable power supply units.
The array is capable of operating with one power supply temporarily, but both power supplies are
required to maintain long-term reliability of the array.

About Power Supplies

The PS Series array receives power from two power supply units (PSUs). The array can run on one
supply while the other is in a failed state.
Each unit has a 2800W power supply that requires 200-240VAC high AC line power source.

Identifying Power Supply Failures

You can identify a power supply and cooling module failure by the following methods:
• LEDs on the power supply and cooling modules. See
page 5 for details.
• Messages on the console, in the event log, or in the Group Manager GUI Alarms panel.
• Group Manager GUI and CLI output. The GUI group member Enclosure tab or the CLI
member select member_name show enclosure
module failure.
Note: When viewing the rear of the array, power supply 0 is on the left and power supply 1 is on the
right.
Power Supply Controls and LEDs
The power supplies contain LEDs that indicate their status.
AC Power Supply
Figure 22 illustrates the features of the power supply.
command shows a power supply and cooling
Figure 22: 2800W Power Supply LEDs
Back-Panel Features and Indicators on
Table 10 describes these features.
31