IBM EXP15, Hardware Maintenance Manual

Page: 76 / 146

Restoring power after an emergency
Use this procedure to restart the expansion unit if you
turned off the power supply switches during an emergency
shut down, or if a power failure or a power outage
occurred.
1. After the emergency situation is over or power is
restored, check the expansion unit for damage. If
there is no visible damage, continue with Step 2;
otherwise, have your system serviced.
2. After you have checked for damage, ensure that the
power switches are in the off position; then, plug in
the expansion unit power cords.
3. Check the system documentation for the hardware
devices you intend to power up and determine the
proper startup sequence.
Note
Be sure to turn on the IBM Netfinity EXP500 prior
to or at the same time as the server.
4. Turn on the power to each device, based on the
startup sequence.
5. Turn on both power supply switches on the back of
the IBM Netfinity EXP500.
6. Only the green LEDs on the front and back and the
amber Bypass LEDs for unconnected GBIC ports
should remain on. If other amber Fault LEDs are on,
refer to “Symptom-to-FRU Index” on page 71 for
instructions.
7. Use your installed software application as appropriate
to check the status of the expansion unit.
68
IBM Netfinity EXP15, EXP200, EXP500 HMM