v
The Overall Configuration Needs Attention LED on the storage subsystem front
bezel is turned on.
v
The controller Needs Attention LEDs are not turned on.
v
The power supply and fan unit Needs Attention LEDs are not turned on.
v
The Service Action Allowed LED is turned on for the power supply and fan unit
connected to the controller with the open circuit breaker.
v
The DS Storage Manager client shows the power supply and fan unit has failed.
Use the following procedure to reset the circuit breaker.
Tools and Equipment
v
Antistatic protection
v
Nonconducting stylus
Electrostatic discharge can damage sensitive components –
Touching the
storage subsystem or its components without using a proper ground might damage
the equipment. To avoid damage, use proper antistatic protection while handling
any components.
1. If the alarm is sounding, turn off the alarm.
2. Check to ensure that the external power cables are completely plugged into
the controllers and into the power source.
3. Put on antistatic protection.
4. Remove the front bezel by grasping the sides and pulling the cover toward
you.
5. Check the Needs Attention LED on each power supply and fan unit. (Figure 98
shows the left power supply and fan unit Service Action Allowed LED is the
top, or first, LED, and the Needs Attention LED is the second LED. On the
right power supply and fan unit the Service Action Allowed LED is the bottom
LED, and the Needs Attention LED is the next LED above it.)
Is a power supply and fan unit Needs Attention LED on?
Needs Attention LED
Service Action
Allowed LED
Needs Attention LED
Service Action
Allowed LED
Right power supply-fan unit
Left power supply-fan unit
ds50046
Figure 98. Power supply and fan unit Needs Attention LEDs
Chapter 4. Operating the storage subsystem
159