Too many people may spoil the broth in the kitchen, but in other places too many things are good. United is how the servers in a cluster deliver. I like the concept of clustering servers but clusters can be complicated.
Server clustering is based on the concept of bringing many servers together and distributing the work load over them. So, if one server fails, others take over and ensure availability of your applications. Clustering, thus, offers reliability and a high level of business continuity in case of a failure.
Another good thing about the cluster is that it accommodates your growing needs easily. Its scalability is a big advantage for organizations. When many servers are working together, if you shut down one, your work is not affected. Thus, maintenance becomes easy. You can perform maintenance activities on one server while others keep your applications available.
Now, as I mentioned earlier, server clustering can be complicated. That’s because now you will be monitoring and managing multiple servers instead of just one. The complexity increases manifold here as you have a lot of hardware to take care of.
In spite of all the advantages of clustering, you cannot enjoy them if the servers you own are not compatible with clustering designs. Yes, you cannot cluster all types of servers. The problem not only lies with the type of servers but also with the type of applications. Yeah, clustering does not support many applications. So, you have to know at the onset if you should go for clustering at all.
Don’t get too excited about clustering before understanding your needs and your servers. Go for it only if everything suits the bill.