Power supply
Isilon IQ nodes include a dual power supply system to help minimize downtime caused by power source complications. The
two power supply units operate in tandem, each providing half of the amperage draw to the node components.
General ESD guidelines
Always follow electrostatic discharge (ESD) prevention procedures when removing and replacing cards, memory, and other
system components. You must use a wrist strap, attached to the node chassis, for grounding.
Required hardware
•
Replacement power supply
•
ESD grounded wrist strap
Replacing a power supply
Isilon IQ nodes have two power supplies that provide redundant power to the node. The power supply units are accessible
from the back of the node.
Caution: Never remove both power supply units from a running node.
!
Note: Replacing a power supply does not require powering down the node. The remaining power unit provides
enough power for the node.
1. Check the LED on each of the power supply units to determine which unit has failed. An amber LED indicates a
failed unit. Disconnect the power cord from the plug of the unit to be replaced.
1
2
2 Power supply release lever
1 Power supply LED
Figure 2. 4U Isilon IQ power supply location
2. Push the power supply release lever to the left to release the unit from the retaining catch.
3. Pull the power supply unit from the power supply bay, using the vertical loop handle.
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