IBM 87302RU, Hardware Maintenance Manual

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Table 6. Troubleshooting charts (continued)
Device Suggested action
Ethernet disconnect notice
will not appear when running
Windows 2000.
If an Ethernet cable is accidentally removed from the back of the BladeCenter T unit,
the small red X (disconnect notice) that normally would appear to indicate that the
cable was disconnected will not appear in the bottom right of the screen. The
disconnect notice does not appear because the blade server Ethernet controller
connects to the Ethernet switch module through integrated circuitry inside the
BladeCenter T unit.
When troubleshooting Ethernet-related problems, make sure that the Ethernet cables
on the back of the BladeCenter T unit are connected properly.
The default IP address set by
the Ethernet switch module
does not match the one
assigned by the management
module.
When troubleshooting Ethernet-related problems, make sure that the Ethernet cables
on the back of the BladeCenter T unit are connected properly.
Updating the ethernet switch
module configuration through
the management module
does not save the switch
NVRAM.
When you use the management-module Web interface to update the Ethernet switch
module configuration, the management module firmware writes its settings for the
switch module only to the management module NVRAM; it does not write its settings
for the switch module to the switch-module NVRAM.
If the switch module restarts when the management module is not able to apply the
IP address it has in NVRAM for the switch module, the switch module will use
whatever IP address it has in its own NVRAM. If the two IP addresses are not the
same, you might not be able to manage the Ethernet switch module any more.
The management module cannot apply the switch IP address from its NVRAM if:
v
The management module is restarting
v
The management module has failed
v The management module has been removed from the unit.
When you use the management-module Web interface to update the Ethernet switch
module configuration, the management module firmware writes its settings for the
switch module only to the management module NVRAM; it does not write its settings
for the switch module to the switch module NVRAM.
If the switch module restarts when the management module is not able to apply the
IP address it has in NVRAM for the switch module, the switch module will use
whatever IP address it has in its own NVRAM. If the two IP addresses are not the
same, you might not be able to manage the Ethernet switch module any more.
The management module cannot apply the switch IP address from its NVRAM if:
v
The management module is restarting
v The management module has failed
v
The management module has been removed from the unit.
Keyboard problems
The keyboard is very slow
when using an operating
system that does not have
USB drivers.
Although the keyboard attached to the BladeCenter T unit is a PS/2-style keyboard,
communication with it is through a USB bus. When you are running an operating
system that does not have USB drivers, such as in the following instances, the
keyboard responds very slowly.
1. Run the blade server integrated diagnostics
2. Run a BIOS update diskette on a blade server
3. Update the diagnostics on a blade server
4. Run the Broadcom firmware CD for a blade server
The keyboard is very slow
when using an operating
system that does not have
USB drivers.
Sometimes when switching ownership of the KVM to a blade server, the video for the
blade server appears almost immediately, but it takes up to 10 or 20 seconds for the
mouse and keyboard to be usable. No action required.
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BladeCenter T Type 8720 and 8730: Hardware Maintenance Manual and Troubleshooting Guide