Troubleshooting Charts; Power Problems - IBM eServer BladeCenter JS20 Installation And User Manual

Troubleshooting charts

The following tables list problem symptoms and suggested solutions. See the
BladeCenter JS20 Type 8842 Hardware Maintenance Manual and Troubleshooting
Guide on the IBM BladeCenter Documentation CD for more detailed troubleshooting
charts. If you cannot find the problem in the troubleshooting charts, run the
diagnostic programs. If you have run the diagnostic test programs, or if running the
tests does not reveal the problem, have the blade server serviced.
Notes:
v If you have problems with an adapter, monitor, keyboard, mouse, or power
v If you have problems with an Ethernet or Fibre Channel switch module, IBM

Power problems

Power symptom
The blade server does not
turn on.
module, see the Eserver BladeCenter HS20 Type 8678 Hardware Maintenance
Manual and Troubleshooting Guide on the IBM BladeCenter Documentation CD
for more information.
Eserver BladeCenter Optical Pass-Thru Module, I/O adapter, or other optional
device that can be installed in the BladeCenter unit, see the applicable Hardware
Maintenance Manual and Troubleshooting Guide on the IBM BladeCenter
Documentation CD or other documentation that comes with the device for more
information.
Suggested action
1. Make sure that:
a. The power-on LED on the front of the BladeCenter unit is lit.
b. The LEDs on all the BladeCenter power modules are lit.
c. If the blade server is in blade bays 7 through 14, power modules are in
power-module bays 1, 2, 3, and 4.
d. The power-on LED on the blade-server control panel is flashing slowly.
v If the power-on LED is flashing rapidly and continues to do so, the blade
server is not communicating with the management module; reseat the
blade server and go to step 3..
v If the power LED is off, either the blade bay is not receiving power, the
blade server is defective, or the LED information panel is loose or
defective.
e. Local power control for the blade server is enabled (use the BladeCenter
management-module Web interface to make sure), or the blade server was
instructed through the management module (Web interface) to turn on.
2. If you just installed an option in the blade server, remove it, and restart the blade
server. If the blade server now turns on, troubleshoot the option (see the
documentation that comes with the option for information).
3. Try another blade server in the blade bay; if it works, replace the faulty blade
server.
4. If the problem remains, have the blade server serviced.
Chapter 8. Solving problems
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