IBM eServer BladeCenter HS20 Type 8832, Руководство по техническому обслуживанию и устранению неисправностей

Страница: 90 / 158

Note: See “System” on page 94 to determine which components should be replaced by a field service technician.
Intermittent problems
Symptom FRU/action
A problem occurs only
occasionally and is difficult to
detect.
v Verify that:
– When the computer is turned on, air is flowing from the rear of the computer
at the blower grill. If there is no airflow, the blower is not working. This
causes the computer to overheat and shut down.
– Ensure that the SCSI bus and devices are configured correctly.
Note: See “System” on page 94 to determine which components should be replaced by a field service technician.
Keyboard, mouse, or pointing-device problems
Symptom FRU/action
All or some keys on the
keyboard do not work.
1. Verify that:
v
The keyboard cable is securely connected to the BladeCenter management
module, and the keyboard and mouse cables are not reversed.
v
Both the computer and the monitor are turned on.
2. Keyboard.
3. Management module on the BladeCenter unit; see the IBM BladeCenter Type
8677 Hardware Maintenance Manual and Troubleshooting Guide on the IBM
BladeCenter Documentation CD.
The mouse or pointing device
does not work.
1. Verify that:
v
The keyboard/mouse/video select button LED on the front of the blade
server is lit, indicating that the blade server is connected to the shared
BladeCenter monitor.
v
The mouse or pointing-device cable is securely connected to the
BladeCenter management module, and that the keyboard and mouse cables
are not reversed.
v
The mouse works correctly with other blade servers.
v
The mouse device drivers are installed correctly.
v
Both the computer and the monitor are turned on.
v
The mouse is recognized as a USB device, not PS2, by the blade server.
Although the mouse is a PS2-style device, communication with the mouse is
through an internal USB bus in the BladeCenter chassis. Some operating
systems permit you to select the type of mouse during installation of the
operating system. Select USB.
2. Mouse or pointing device.
3. Management module on the BladeCenter unit; see the IBM BladeCenter Type
8677 Hardware Maintenance Manual and Troubleshooting Guide on the IBM
BladeCenter Documentation CD.
Mouse function lost during Red
Hat installation.
v
If, while installing Red Hat Linux 7.3 to a blade server, you or someone else
selects a different blade server as owner of the keyboard, video, and monitor
(KVM), you might lose mouse function for the installation process.
Do not switch KVM owners until the installation process begins to install the
packages (after the ’About to Install’ window).
80
BladeCenter HS20 Type 8832: Hardware Maintenance Manual and Troubleshooting Guide