Monitoring Load Balancer VA R20
To ensure continuous operation of the Loadbalancer.org appliances, eG Enterprise provides a specialized Load Balancer VA R20 monitoring model (see Figure 1).
Every layer of Figure 1 is mapped to a variety of tests which connect to the SNMP MIB of the target load balancer to collect critical statistics pertaining to its performance. The metrics reported by these tests enable administrators to answer the following questions:
- How well the real server is processing client traffic? Which server is handling the maximum traffic?
- How many real servers are associated with each virtual server?
- How well the virtual server is processing client traffic? Which virtual server is handling the maximum traffic?
Since the Network and Operating System layers have been dealt in detail in the Monitoring Unix and Windows Servers document, the sections to come will discuss the Layer4 layer of Figure 1.