3.1.2 Matrix Server Administration Guide

Chapter 15: Test Your Configuration 200

The DNS name is www.acmd.com and 192.168.100.1 is a virtual host with

primary on acmd1 and backup on acmd2. 192.168.100.2 is primary on

acmd2 and backup on acmd1. DNS is set up to round robin on the servers

acmd1 and acmd2, using the virtual host addresses 192.168.100.1 and

192.168.100.2.

Validate Correct Load-Balancing Operation

The following procedure validates that DNS round robin and Matrix

Server are working correctly.

1. Ping www.acmd.com.

2. Validate that the returned IP address is 192.168.100.1.

3. Ping www.acmd.com.

4. Validate that the returned IP address is 192.168.100.2.

5. Continue to ping and validate that the opposite IP address is returned

by DNS.

Validate Load-Balancing When a Server Is Down

This test verifies that the load-balanced matrix operates correctly when

one of the servers is down or removed from the matrix. The latter part of

the test validates that the server begins to handle its portion of the load-

balanced traffic when it rejoins the matrix.

1. From the Matrix Server console, log into one of the servers in the

matrix.

2. Pull the LAN network connection(s) from a server that you are not

logged onto.

3. Verify that Matrix Server detects that the server is down and that the

backup for this virtual host takes over operation from the primary.

4. Ping the address www.acmd.com multiple times.

5. Verify that all requests are still being returned correctly.

6. Restore the LAN network connections.