Red Hat CLUSTER SUITE - CONFIGURING AND MANAGING A CLUSTER 2006 Manual page 39

Chapter 2. Hardware Installation and Operating System Configuration
5. Decrease the alternate kernel boot timeout limit to reduce boot time for nodes. Refer
to Section 2.4.2 Decreasing the Kernel Boot Timeout Limit for more information
about performing this task.
6. Ensure that no login (or
are being used for the remote power switch connection (if applicable). To perform
this task, edit the
entries that correspond to the serial ports used for the remote power switch. Then,
invoke the
init q
7. Verify that all systems detect all the installed hardware:
Use the
• dmesg
2.4.3 Displaying Console Startup Messages for more information about perform-
ing this task.
Use the
• cat /proc/devices
kernel. Refer to Section 2.4.4 Displaying Devices Configured in the Kernel for
more information about performing this task.
8. Verify that the nodes can communicate over all the network interfaces by using the
command to send test packets from one node to another.
ping
9. If intending to configure Samba services, verify that the required RPM packages for
Samba services are installed.
2.4.1. Editing the
The
/etc/hosts
file on each node must contain entries for IP addresses and associated
/etc/hosts
hostnames for all cluster nodes.
As an alternative to the
to define the host names used by a cluster. However, to limit the number of dependencies
and optimize availability, it is strongly recommended to use the
IP addresses for cluster network interfaces.
The following is an example of an
use DNS-assigned hostnames:
) programs are associated with the serial ports that
getty
/etc/inittab
command.
command to display the console startup messages. Refer to Section
File
/etc/hosts
file contains the IP address-to-hostname translation table. The
file, name services such as DNS or NIS can be used
/etc/hosts
/etc/hosts
file and use a hash symbol (#) to comment out the
command to display the devices configured in the
file on a node of a cluster that does not
file to define
/etc/hosts
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