22. Create, save, and print a new storage subsystem profile.
Replacing a DC power-fan controller in the DS3500
controller-drive enclosure
Before you start to replace the power-fan controller in the controller-drive
enclosure, gather anti-static protection and a replacement DC power-fan controller.
Attention: Possible equipment damage – You must replace the power-fan
controller within three minutes after removing the failed power-fan controller to
prevent the possibility of overheating the equipment.
You can determine whether you have a failed power-fan controller in two ways:
v The Recovery Guru directs you to replace a failed power-fan controller.
v You locate the failed power-fan controller by checking the Power-Fan Service
Action Required LED.
Attention: Possible hardware damage – To prevent electrostatic discharge damage
to the enclosure, use proper anti-static protection when handling enclosure
components.
1. If possible, use the storage management software to create, save, and print a
new storage subsystem profile.
2. Did the Recovery Guru direct you to replace a failed power-fan controller?
v Yes – Go to step 3.
v No – Run the Recovery Guru to identify the failed component, and go to
step 3.
3. Put on anti-static protection.
4. Unpack the new power-fan controller.
a. Set the new power-fan controller on a flat, anti-static surface near the
controller-drive enclosure.
b. Save all the packing materials in case you need to return the power-fan
controller.
5. Ensure that the Power switch on the new power-fan controller is turned off.
6. Check the Power-Fan Service Action Required LEDs on the controller-drive
enclosures to locate the failed power-fan controller.
CAUTION:
Risk of electrical shock – Before removing or installing a power supply,
turn off the power switch, and unplug the power cord.
Fault LED (amber)
DC power in LED (green)
OK to remove LED (blue)
DC power out LED (green)
Standby power LED (green)
Figure 109. DC power-supply LEDs
Chapter 5. Replacing components 145