IBM eserver Cluster 1350, Installation And Service Manual

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Chapter 10. Using the KVM switch
The KVM switch allows the use of a single keyboard, mouse, and monitor for
multiple servers. You can switch between nodes and a console through the KVM
switch interface, known as OSCAR.
The switch provides on-screen configuration and activity reporting, programmable
scanning, NVRAM for saving configuration parameters, and an external reset
switch.
Saving the KVM switch settings
Save device settings in the nonvolatile memory (NVRAM) of the KVM switch when
any of the following occurs:
v
The KVM switch is initially powered on.
v
Nodes are added to or removed from the cabinet.
v
There is a change in the keyboard, mouse, or monitor.
Attention: If device settings are not saved and the power to the KVM switch is
lost, it may be necessary to reboot each node in the system to re-establish
keyboard and mouse communications.
To save the device settings in the KVM switch NVRAM, perform the following steps:
1. On the keyboard, press Print Screen . The OSCAR selection window opens.
2. Press F2 . The Advanced menu window opens. The Commands menu is
highlighted.
3. Use the arrow keys (<- and ->) to highlight Snapshot , and press Enter . The
device settings are now saved to NVRAM.
Connecting components with the KVM switch power turned on
You can connect additional servers to the KVM switch while the system is running.
When you power up the newly connected node, the KVM switch recognizes it, and
you can switch to the new node without taking any additional steps.
You can also connect the mouse, keyboard, and/or monitor to the KVM switch while
the system is powered up. When you connect a new device, the KVM switch
recognizes it and configures it to the settings of the currently selected node. This
allows replacement of failed devices without having to restart the system.
Switching between nodes and the console
The KVM switch lets you disconnect the keyboard, mouse, and monitor from the
currently selected node or from the console. You can also connect the keyboard,
mouse, and monitor to another node or to the console.
Perform the following to switch between nodes or the console:
1. Press Print Screen . The OSCAR selection window opens.
Attention: The servers and the console are listed in order by port or by name,
depending on the user-definable settings in OSCAR menu attributes.
2. To select a node or the console, perform one of the following:
a. Use the arrow keys (<- and ->) to select the node or the console; then press
Enter .
© Copyright IBM Corp. 2004
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