Network Connection Problems; Power Problems - IBM 8853L6U Service Manual

Network connection problems

To check for network connection problems, complete the following steps until the
problem is solved:
1. Make sure that:
2. Check for correct I/O-module operation; troubleshoot and replace the I/O
3. Check for correct management-module operation (see the documentation for
4. Replace the management module (see the documentation for your BladeCenter
If these steps do not resolve the problem, it is likely a problem with the blade
server. See "Network connection problems" on page 86.

Power problems

To check for power problems, make sure that:
v The LEDs on all the BladeCenter power modules are lit.
v Power is being supplied to the BladeCenter unit.
v Installation of the blade server type is supported by the BladeCenter unit.
v The BladeCenter unit has the correct power configuration to operate the blade
v The BladeCenter unit power management configuration and status support blade
v Local power control for the blade server is correctly set (see the Management
v The BladeCenter unit blowers are correctly installed and operational.
If these operations do not solve the problem, it is likely a problem with the blade
server. See "Power error messages" on page 87 and "Power problems" on page 89.
v The network cables are securely connected to the I/O module.
v Power configuration of the BladeCenter unit supports the I/O module
configuration.
v Installation of the I/O-module type is supported by the BladeCenter unit and
blade server hardware.
v The I/O modules for the network interface that is being used are installed in
the correct BladeCenter bays, and are configured and operating correctly.
v The settings in the I/O module are correct for the blade server (settings in the
I/O module are specific to each blade server).
module as indicated in the documentation for the I/O module.
your BladeCenter unit).
Note: Some BladeCenter unit types have several management-module
components that might need to be tested or replaced (see the Installation Guide
for your management module for more information).
unit).
bay where your blade server is installed (see the documentation for your
BladeCenter unit).
server operation (see the Management Module User's Guide or the Management
Module Command-Line Interface Reference Guide for information).
Module User's Guide or the Management Module Command-Line Interface
Reference Guide for information).
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Chapter 5. Diagnostics