| The web server may host applications that display information that cannot be disrupted, such as information that is time critical or life threatening. In these cases, a web server that shuts down or ceases to be accessible when there is a failure is not acceptable. In these types of cases, clustering of web servers is used.
Clustering of multiple web servers is a common approach to providing fail-safe application availability. To ensure application availability, the web server must provide clustering or some form of failover functionality.
Satisfies: SRG-APP-000225-WSR-000141, SRG-APP-000356-WSR-000007 |