Restoring Power After An Emergency Shutdown; Restoring Power After An Overtemperature Shutdown; Monitoring Status Through Software - IBM TotalStorage DS300 Hardware Installation And User's Manual

Restoring power after an emergency shutdown

Complete the following steps to restart the storage subsystem if you turned off the
power-supply switches during an emergency shutdown, or if a power failure or a
power outage occurred:
1. After the emergency situation or when power is restored, check the storage
2. After you have checked for damage, make sure that the power-supply switches
3. Complete step 2 on page 37 to determine the correct power-on sequence for
4. Complete steps 3 on page 37 and 4 on page 37 to turn on power to the devices

Restoring power after an overtemperature shutdown

Complete the following steps to restart the storage subsystem after an unexpected
shutdown due to of an overtemperature 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 power-supply-with-fan
3. Check all components and cables for visible damage. Do not start the storage
4. Complete step 2 on page 37 to determine the correct power-on sequence for
5. When the internal temperature of the storage subsystem is below 45°C (113°F),

Monitoring status through software

Use the ServeRAID Manager program to monitor the status of the storage
subsystem. Run the program constantly, and check it frequently.
The ServeRAID Manager program provides the best way to diagnose and repair
storage-subsystem failures. The program can help you:
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, the LEDs do not necessarily
indicate which component has failed or must be replaced, or which type of recovery
procedure that you must perform. In some cases (such as loss of redundancy in
various components), the fault LED is not lit. Only the ServeRAID Manager program
can detect the failure.
40
IBM TotalStorage DS300 and DS400: Hardware Installation and User's Guide
subsystem for damage. If there is no visible damage, continue with step 2;
otherwise, have the system serviced.
are off; then, connect the power cords to the storage subsystem.
the system.
in the system and to check the status of the storage subsystem.
subsystem are turned off.
units, use external fans to cool the room, and so on).
subsystem if you find evidence of damage.
the system.
complete steps 3 on page 37 and 4 on page 37 to turn on power to the devices
in the system and to check the status of the storage subsystem.