•
The P
ower LED emits a steady green light.
•
The Fault LED is o.
•
All four Activity LEDs emit a green light for each SAS-2 port that has
an SAS interface cable connected to it.
Verify the Status of a Drive Enclosure Component
1 From Guided Maintenance, verify that the status of the component is
Normal.
Guided Maintenance displays a message stating the component status. A
status of Normal requires no action.
2 Close Guided Maintenance.
You can also verify component status by navigating to System >
Hardware > Drive Enclosures. The Drive Enclosure overview page lists
the status of each component.
Replace a Power Cooling Module
The power cooling modules provide redundant power control and cooling of the
system. If one power cooling module fails, the other power cooling module
maintains the power supply and cooling while you replace the failed power
cooling module. Electrical overload, inadequate internal and external airow,
dirt and dust, incorrect input voltage, or a short circuit can damage a power
cooling module. Replace a failed power cooling module immediately; otherwise,
damage from overheating and data loss can occur.
Prerequisites:
•
Before handling a component, touch a grounded surface to discharge any
static electricity.
• Aach an electrostatic discharge (ESD) wrist strap to your wrist, and stand
on an ESD mat while replacing components.
Warning: Do not remove covers from the power cooling modules. Power cooling
modules produce a high-energy hazard.
Each Drive Enclosure has two power cooling modules located at the back of the
Driv
e Enclosure. Power cooling modules are customer replaceable units (CRUs).
You can replace a failed power cooling module without powering down the
Drive Enclosure only if the other power cooling module is operational with a
status of Normal.
The following gure shows the power cooling modules on the DE2-24P Drive
Enclosure and the DE2-24C Drive Enclosure.
Drive Enclosure Replacement Procedures
167
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