IBM DS4800 - Chapter 6. Hardware maintenance; General checkout; Solving problems

Use the following procedure to replace a power supply-fan. Each power supply-fan
contains a power supply, cooling fan, battery charger, and temperature sensor. If
any of these components fail, you must replace power supply-fan. The power
supply, fan, battery charger, and temperature sensor are not individually replaceable
components within the power supply-fan.
Statement 8:
CAUTION:
Never remove the cover on a power supply-fan unit or any part that has the
following label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect a problem with one of these parts, contact
a service technician.
1. Use the DS4000 Storage Manager client software to print a storage subsystem
profile.
2. Locate the storage subsystem that contains the failed power supply-fan by
checking the Overall DS4800 Configuration Needs Attention LED on the front
bezel of the storage subsystem. (Figure 88 shows the location of the Overall
DS4800 Configuration Needs Attention LED on the front bezel.)
3. Remove the front bezel by grasping the sides and pulling the cover toward
you.
Power LED
Overall DS4800 Configuration
Needs Attention LED
Locate/Identify LED
ds48005
Figure 88. Overall DS4800 Configuration Needs Attention LED on the DS4800 front bezel
Chapter 5. Replacing components 145