IBM DS4800 User, Installation And Maintenance Manual page 132

Use the following procedure to check the status of the storage subsystem. If a
problem has occurred, use the DS4000 Storage Manager client software and the
LEDs on the storage subsystem to help locate a failed component.
10. Replace the failed component. For instructions on replacing the controllers,
11. If the problem has not been fixed, contact your IBM service representative.
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IBM System Storage DS4800 Storage Subsystem: Installation, User's, and Maintenance Guide
1. If applicable, turn off the alarm.
2. If another fault occurs, the alarm sounds again. Use the DS4000 Storage
Manager client software to print a storage subsystem profile.
3. Using the Enterprise Management Window, view the status storage subsystem.
Do any components in the storage subsystem indicate Needs Attention?
v Yes – Go to step 4.
v No – All components are Optimal. Go to step 8.
4. Open the Subsystem Management Window, and display the Physical View for
the components in the storage subsystem.
5. View the status of the storage subsystem by selecting the View Storage
Subsystem button and expanding the Overall Component Information when the
Status window opens.
Using the Overall Component Information view, you can see the status of the
following components:
v Interconnect-battery unit and battery packs in the component
v SFPs
v Power supply-fans
v Temperature sensors
The status for each component is either Optimal, Charging (applicable to
battery packs only), or Needs Attention.
6. Do any components have a Needs Attention status?
v Yes – Go to step 7.
v No – All components are Optimal. Go to step 8.
7. Select the Recovery Guru toolbar button. Perform the procedure in the
Recovery Guru to correct the problem. The Recovery Guru might direct you to
replace the failed component; if so, go to step 10, otherwise continue with step
8.
8. Check the LEDs on the storage subsystem to determine if a fault has occurred
in the storage subsystem.
For the definition of the LED statuses, see "Checking the LEDs" on page 111.
9. Are any Needs Attention LEDs indicating a fault condition?
v Yes – Go to step 10.
v No – You are finished with this procedure.
If you are still experiencing a problem with this storage subsystem, go to step
11.
power supply-fans, interconnect-battery, battery pack, and SFP modules, see
Chapter 5, "Replacing components," on page 133.
Print a storage subsystem profile, and save the storage subsystem support
data. The profile and support data are helpful when troubleshooting storage
subsystem problems. (For information about printing a storage subsystem
profile and saving the support data, refer to the Subsystem Management
Window online help.)