Restoring Power After An Over-Temperature Shutdown; Monitoring Status Through Software - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

1. After the emergency situation is over or power is restored, check the storage
2. After you have checked for damage, ensure that the power-supply switches are
3. Complete step 2 on page 92 to determine the proper power-on sequence for
4. Complete steps 3 and 4 on page 93 to turn on power to the devices in your

Restoring power after an over-temperature shutdown

Use the following procedure to restart the storage subsystem after an unexpected
shutdown due to an over-temperature condition:
1. Make sure that the power-supply switches on the back of the storage
2. Do whatever is necessary to cool the unit (replace the fans, use external fans to
3. Check all components and cables for visible damage. Do not start the storage
4. Complete step 2 on page 92 to determine the proper power-on sequence for
5. When the internal temperature of the storage subsystem is below 35°C (95°F),

Monitoring status through software

Use the storage-management software to monitor the status of the storage
subsystem. Run the software constantly, and check it frequently.
Notes:
1. You can only monitor storage subsystems that are within the management
2. If you do not install the Event Monitor service as part of the
The storage-management software provides the best way to diagnose and repair
storage-server failures. The software can help you do the following:
v Determine the nature of the failure
v Locate the failed component
v Determine the recovery procedures to repair the failure
Although the storage subsystem has fault LEDs, these lights do not necessarily
indicate which component has failed or needs to be replaced, or which type of
recovery procedure you must perform. In some cases (such as loss of redundancy
in various components), the fault LED does not turn on. Only the
storage-management software can detect the failure.
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IBM TotalStorage DS4300 Fibre Channel Storage Subsystem: Installation, User's, and Maintenance Guide
subsystem for damage. If there is no visible damage, continue with step 2;
otherwise, have your system serviced.
off; then plug in the storage-server power cords.
your system.
system and to check the status of the storage subsystem.
subsystem are turned off.
cool the room, and so on).
subsystem if you find evidence of damage.
your system.
complete steps 3 and 4 on page 93 to turn on power to the devices in your
system and to check the status of the storage subsystem.
domain of the storage-management software.
storage-management software installation, the Enterprise Management window
of the storage-management software must remain open. (If you close the
window, you will not receive any alert notifications from the managed storage
subsystems.)
For more information, see the Enterprise Management online Help.