IBM System Cluster 1350, Installation And Service Manual

Page: 41 / 66

a third boot option. After the node has started, the No operating system icon is
displayed correct. If any yellow warning LEDs on the management node are lit,
fix the underlying condition before continuing.
4. Cluster node 1 - turn the power on and make sure that the node passes POST
with no errors. During the startup process make sure that the PXE Boot Agent
Utility program attempts to run. If it does not, press F1 to start the
Configuration/Setup utility program and add Network as a third boot option.
After the node has started, the No operating system icon is displayed correct.
If any yellow warning LEDs on the management node are lit, fix the
underlying condition before continuing.
5. Storage node - on the front panel, turn on the power switch. During the startup
process make sure that the PXE Boot Agent Utility program attempts to run. If
it does not, press F1 to start the Configuration/Setup utility program and add
Network
as a third boot option. After the node has started, the
No operating
system icon is displayed correct. If any yellow warning LEDs on the
management node are lit, fix the underlying condition before continuing. You
must turn on the peripheral devices and bring them online before you turn on
the storage nodes so that the storage nodes can detect them.
6. Make sure that all CAT5 and Fibre Channel connections have a green link LED.
7. Make sure that the management node has power. A green LED on the adapter
faceplate is lit to indicate that power is applied to the adapter. Connect your
mobile computer to a 10/100 switch and configure it to use IP address
172.22.30.20 with a net mask of 255.255.0.0. Log in to the management node
using the Web interface and make sure that each adapter is present. Ping each
communication device (switches, terminal server, power management module,
and KVM switch).
Verifying the hardware installation
A startable CD is included with the Linux Cluster Installation Tool (LCIT)
installation materials. With the 1350 Cluster, you also receive tab files that list the
rack hardware configuration. To make sure that you install the cluster components
correctly, run LCIT to generate a new set of tab files. Compare the new tab files to
the tab files that come with the cluster to make sure that the two sets of tab files
are identical. If the tab files are not identical recheck the component installation.
You can also use LCIT to help you locate nodes that do not start as expected. For
more information about using LCIT, see the User’s Guide that is located on the
CD-ROM that comes with your system and located at http://www.ibm.com/
systems/support/
Diagnosing a lights out or brown out event
If you experience a problem after the hardware installation, you can do a visual
check of the cluster components to see if the cluster components light the various
component LED indicators after installation. The following sequence occurs during
a lights out or brown-out event scenario.
1. A lights-out event or brown-out event occurs. The system turns off and then
turns back on through an external source.
2. All nodes turn on to the last known state (On/Off). If the last known state is
On, then the nodes start and display a login prompt.
3. Log files show system restart events on nodes. If a lights-out or brown-out
event occurs, check the following log files:
v
/var/log/messages
v
/var/log/csm/installnode.log (management server)
v
/var/log/csm/install.log (on the node)
v
BIOS code event log
Chapter 4. Checking the Cluster 1350 cabling process
25