Owner's Manual

32
Configuring the Private Network Using Bonding
Before you deploy the cluster, configure the private cluster network to allow the
nodes to communicate with each other. This involves configuring network bonding
and assigning a private IP address and hostname to each node in the cluster.
To set up network bonding for Broadcom or Intel
®
NICs and configure the private
network, perform the following steps on
each node :
1 Log in as root .
2 Add the following line to the /etc/modprobe.conf file:
alias bond0 bonding
3
For high availability, edit the /etc/modprobe.conf file and set the option for
link monitoring.
The default value for
miimon is 0, which disables link monitoring. Change
the value to 100 milliseconds initially, and adjust it as needed to improve
performance as shown in the following example.
Ty p e :
options bonding miimon=100 mode=6 max_bonds=2
4
In the /etc/sysconfig/network-scripts/ directory, create or edit the ifcfg-bond0
configuration file.
For example, using sample network parameters, the file would appear as
follows:
DEVICE=bond0
IPADDR=192.168.0.1
NETMASK=255.255.255.0
NETWORK=192.168.0.0
BROADCAST=192.168.0.255
ONBOOT=yes
BOOTPROTO=none
USERCTL=no
The entries for NETMASK , NETWORK , and BROADCAST are optional.
DEVICE=bondn is the required name for the bond, where n specifies the
bond number.
IPADDR is the private IP address.
To use bond0 as a virtual device, you must specify which devices will be
bonded as slaves.