Because you can deploy AppManager in almost any scenario, there is no standard implementation formula that is applicable to all scenarios.A management site comprises one QDB and one or more management servers. Typically, you install the QDB and management server on separate computers. The management server accesses the QDB every five seconds and manipulates QDB data, which results in dense network traffic and requires a highly-available connection between the management server and the QDB.
NetIQ Corporation recommends installing multiple management servers to distribute processing and communication and provide failover support for agent computers. Each agent computer needs at least one management server. If you install multiple management servers, explicitly designate a primary and secondary management server for each agent computer to communicate with. For more information about designating primary and secondary management servers, see Section 8.0, Installing Agent Components and the Administrator Guide for AppManager, available on the AppManager Documentation page.
Workload is an important factor to consider when planning your implementation. The number of agent computers you plan to have in your environment and the number of jobs you plan to run on each agent computer should help you determine the number of management servers and QDBs you need.
NetIQ Corporation recommends always having two management servers per QDB to provide failover support. Designate one as primary and one as secondary and split the workload so that half of your agent computers use management server A as primary and management server B as secondary, and the other half use management server B as primary and management server A as secondary.