Chapter 7. Sharing Resources Among The Blade Servers - IBM eServer BladeCenter T8720 Installation And User Manual

Chapter 7. Sharing resources among the blade servers

The IBM Eserver BladeCenter T Type 8720 or 8730 unit provides resources that
are available to all blade servers at all times, such as power modules, cooling,
system management, and network I/O modules; no user intervention is required.
Some resources are selectable for use by a single blade server at a time, such as
the CD-ROM drive, USB port units (media tray), or the keyboard-video-mouse
(KVM) module. There are several ways to select resources for a blade server:
v Each blade server has two selection buttons on the front of the blade:
v You can use the management module Web interface to change ownership of the
v You can press keyboard keys in the following sequence to switch KVM control
Notes:
1. It can take up to 20 seconds for the operating system in the switched-to blade
2. If you install Microsoft Windows 2000 on a blade server while it is not the
3. The operating system in the blade server must provide USB support for the
4. You can use the management-module Web interface to enable or disable the
5. The monitor attached to the BladeCenter T management module normally
© Copyright IBM Corp. 2004
.
– To switch the keyboard, video, and mouse to a specific blade server, press
the button on that blade server.
– To switch the CD-ROM and USB ports to a specific blade server, press the
CD
button on that blade server.
The management module immediately assigns the resource to the blade server
requesting it.
keyboard, video, and mouse, or the CD-ROM drive, and USB ports (Blade
tasks→ Remote control).
between blade servers:
NumLock NumLock blade_server_number Enter
Where blade_server_number is the two-digit number for the blade bay in which
the blade server is installed. When using some keyboards, such as the 28L3644
(37L0888) keyboard, you will need to hold down the Shift key while entering this
key sequence.
server to recognize the CD-ROM drive, and USB ports, or the keyboard, video,
and mouse.
current owner of the keyboard, video, and mouse, the first time the blade server
requests ownership after the operating system has been installed, it can take up
to 1 minute for the operating system to recognize the devices (this is a
one-time-only occurrance).
blade server to recognize and use the keyboard, mouse, and CD-ROM drive.
The BladeCenter T unit uses USB for internal communication with these
devices.
select buttons (Blade tasks→ Remote control) on the blade servers.
shows the video output from the blade server that is the current owner of the
keyboard, video, and mouse (KVM). When there is no actively selected video
from any blade server, the video from blade server 8 is routed to the
management module. While the management module is restarting, there is
temporarily no current KVM owner. The video from blade server 8 displays on
the monitor briefly until the management module uses its NVRAM values to
CD
and
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