4.1.2 HA Cluster Setup

The sequence for setting up master server HA clusters is master server (primary) first, then the master server (secondary).

The HA cluster setup procedure is shown below.

Setup starting with the master server (primary).
Log in to the master server (primary) with root permissions.
Set the cluster interconnect and activate it.
1. Edit the /etc/sysconfig/network-scripts/ifcfg-ethX file
  Edit "ONBOOT" in the "/etc/sysconfig/network-scripts/ifcfg-ethX" file as follows:
```
ONBOOT=yes
```
  Note
  ethX is the network interface used by the cluster interconnect.
  Specify a numeric at X.
2. Check the cluster interconnect
  Use the command below to check the status of the interface for the interconnect:
```
# ifconfig <relevant interface> <Enter>
```
3. If the output results of the above command indicate that the relevant interface status is not "UP", execute the following command, then check that the interface is "UP".
```
# ifconfig <relevant interface> up <Enter>
```
Execute HA cluster setup 1.
Execute cluster_setup.
```
# /opt/FJSVbdpp/setup/cluster_setup <Enter>
```
Next setup with the master server (secondary).
Log in to the master server (secondary) with root permissions and perform steps 2 and 3.
Execute HA cluster setup 2 first on the master server (primary) and then on the master server (secondary).
Execute cluster_setup2 on each server.
```
# /opt/FJSVbdpp/setup/cluster_setup2 <Enter>
```
After performing the setup procedure, restart the system first on the master server (primary) and then on the master server (secondary).
```
# shutdown -r now <Enter>
```
Note
If setup fails, refer to the messages came up during the setup operation and/or setup log file (/var/opt/FJSVbdpp/log/bdpp_setup.log) to diagnose the failure.
Then, remove the cause of the failure and perform setup again.