31. Look at the Service Action Required LED on the controller, and look at all of
the controller tray's Service Action Required LEDs. Based on the LED status,
perform one of these actions:
v
All of the Service Action Required LEDs are off, and the Subsystem
Management window indicates an Optimal status – Go to step 34.
v
Any of the controller tray’s Service Action Required LEDs is on – Check
that the controller has been installed correctly. Reinstall the controller if
necessary. Go to step 32.
32. Open the DS Storage Manager client and ensure that the storage subsystem
is optimal. Redistributed LUNs if necessary. If your storage subsystem does
not have an Optimal status, click the Recovery Guru toolbar button in the
Subsystem Management window to determine if any other actions are
required.
33. Did this action correct the problem?
v
Yes – Go to 34.
v
No – If the problem has not been resolved, contact IBM Support.
34. Remove the antistatic protection.
35. Check the status of all of the storage expansion enclosures in the storage
subsystem configuration.
36. Does any component have a Needs Attention status?
v
Yes – Click the Recovery Guru toolbar button in the Subsystem
Management window, and complete the recovery procedure. If the problem
is not resolved, contact IBM Support.
v
No – Go to step 37.
37. Use the DS Storage Manager client to create, save, and print a new storage
subsystem profile as well as collect and save all support data.
Replacing a power supply and fan unit
The power supply and fan unit is a component that includes both a 400-W power
supply unit and two fans. The power supply and fan units provide power and
cooling for the DS5100 and DS5300. The power supply and fan units are customer
replaceable units (FRUs) and do not require preventive maintenance. Use only the
supported power supply and fan units for your specific storage subsystem.
Each power supply and fan unit has a built-in sensor that detects the following
conditions:
v
Over-voltage
v
Over-current
v
Overheated power supply
If any of these conditions occurs, one or both power supplies will shut down. If the
power remains off after the condition that causes it to go off, make sure that the
environment is optimal (no overheating has occurred, all electrical outlets are
working, and so on). For more information, see “Restoring power after an
unexpected shutdown” on page 136.
The storage subsystem cooling system consists of two fans in each of the two
power supply and fan units. The power supply and fan units circulate air from the
front to the back of the unit.
Chapter 5. Replacing components
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