High Availability
We previously mentioned that Configuration Manager is not a real-time product and a certain amount of downtime can be tolerated in most cases. However, it's also useful to add HA to the solution where possible as this would reduce the risk of having to recover a site using the techniques that we described in this chapter.
It's important to note that we cannot implement fault tolerance for all Configuration Manager roles. This section describes some important roles and highlights whether or not it is possible to introduce HA.
Site Server: Main site system role. The Site Server hosts the Configuration Manager components and services. There are no HA options.
Site Database Server: hosts the Configuration Manager Site Database. SQL can be installed in a HA cluster.
SMS Provider: WMI provider used to access and modify Configuration Manager data. You can install multiple SMS Providers.
Management Point: Accepts management data and replies to requests from Configuration Manager clients...
