Owners Manual

Replace a power/cooling module in a 25-drive
expansion enclosure
Take the following actions to remove the faulted power/cooling module from the 25-drive expansion enclosure and install a
replacement power/cooling module.
Identify a faulted part from PowerStore Manager
Before you replace a part, ensure that you have identified its location within the system. Using PowerStore Manager, you can
identify and locate a faulted part.
Steps
1. From PowerStore Manager, select Hardware.
2. Select the appliance that contains the faulted part.
3. From the Hardware card, select the view of the system where the faulted part is located.
Faulted parts appear in red in the image of the system, and report a status of Faulted in the State field.
Removing a faulted power/cooling module
Prerequisites
Identify the faulted power/cooling module by the amber fault LED.
CL5987
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Figure 131. Fault LED on an AC power/cooling module
About this task
CAUTION:
Access to the drives in your enclosure will time out and the drives will spin down two minutes after
a power cooling module is removed from the enclosure. While the system can continue operating on a single
power supply, the loss of two blowers causes the DAE to power down unless you replace the module within two
minutes. When replacing both cooling modules, ensure that the green light on one module has been steadily on
for at least 5 seconds before removing power from the second module.
Steps
1. Attach an ESD wristband to your wrist and the enclosure.
2. On an AC power/cooling module, release the cable retention bail, and unplug the power cord.
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Expansion enclosure service procedures