Server clustering is specifically designed for high availability solution. In case, if a server is having a problem another server from the cluster takes over the server having issue. This ensures the high availability of the web applications.
Server clustering is completely a scalable solution. Resources can be added to the cluster accordingly.
If a dedicated server from the cluster requires maintenance, it can be stopped while other servers handles its load. Thus, makes the maintenance more easier. The clustered servers can be configured and managed easily without any trouble.
Some of the reasons are :-
1.Improved scalability – Server Clustering enables applications to handle more load.
2.Higher availability – Server Clustering helps applications avoid interruptions in service
3.Greater flexibility – The ability of clustering to present a virtual unified computing resource provides IT personnel with more options for configuring the infrastructure to support application performance, availability, and scalability requirements.