CAUTION:
Never remove the cover on a power supply and 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.If needed, use the DS4000 Storage Manager client software to print a storage system profile.
2.Did the Recovery Guru direct you to replace a failed power supply and fan unit?
v Yes - Go to step 3.
vNo - Run the Recovery Guru to identify the failed component, and then go to step 3.
3.Put on antistatic protection.
4.Unpack the new power supply and fan unit. Save all packing material in case you need to return the failed power supply and fan unit CRU.
Note: The new power supply and fan unit CRU comes with an instruction sheet and label sheet. The instruction sheet provides instructions on placing the appropriate labels on the power supply and fan unit CRU to mark the LEDs correctly. The label sheet contains the
5.Using the information provided on the instruction sheet, place the labels on the power supply and fan unit CRU to correctly mark the LEDs.
6.Turn off the power switch on the new unit.
7.Check the Fault LED to locate the failed power supply and fan unit. If a fault is detected, the amber Fault LED is on.
8.Verify that the Service Action Allowed LED is on. Do not remove the power supply and fan unit if the LED is off. For more information on the Service Action Allowed LED, see “Service Action Allowed Status LED” on page 145.
Statement 1:
166IBM System Storage DS4700 Express Storage Subsystem: Installation, User’s and Maintenance Guide
