Preparing Stealth Mode Screens for HA

The first step when defining an HA cluster is to properly configure the necessary network interfaces and install the SunScreen software.

Prepare the System

1. Configure the interfaces on the Primary machine.

   1. If it does not already exist, configure the administration interface.

      For bos-screen1 in this example, use the following command:

      echo "192.168.1.3" > /etc/hostname.le0

   2. If it does not already exist, configure the HA heartbeat interface.

      For bos-screen1 in this example, use the following command:

      # echo "10.0.4.1" > /etc/hostname.le0

   3. Reboot the Primary machine.

2. Install the SunScreen software on the Primary machine and verify that it is functions properly

   Follow the instructions for the stealth mode example described in Chapter 4, Configuring a Stealth Mode Screen

3. Prepare a Secondary machine to mirror the configuration of the Primary Screen.

   This machine will be used as the secondary HA Screen. In this example, the second machine is named bos-screen2. The second machine (HA secondary) must be identical to the first machine (HA primary) in the following ways:

   • Solaris configuration

   • hardware (ideally)

   • Interface types

   The only configuration differences between the first and second machines are:

   • /etc/nodename

   • IP address of the administrative interface

   • IP address of the HA interface

4. Configure the interfaces on the Secondary machine.

   1. If it does not already exist, configure the administration interface.

      For bos-screen2 in this example, use the following command:

      # echo "192.168.1.4" > /etc/hostname.le0

   2. If it does not already exist, configure the HA heartbeat interface.

      For bos-screen2 in this example, use the following command:

      # echo "10.0.4.2" > /etc/hostname.le0

   3. Reboot the Secondary machine.

Your systems are now prepared to run HA in stealth mode. Continue with the configuration by going to "Configuring the HA Cluster".