A group of servers working together helps where the single server fails. I guess the notion of bringing servers together to form a cluster came from the adage ‘unity is strength’. The concept of cluster servers promises business continuity in instances of a major problem with a server. However, clustering has some limitations too. In today’s post, we will look at the benefits and limitations of server clustering.
Benefits of Server Clustering
- It offers high availability. With server clustering, one server takes over in case there is a problem with another server. This ensures high availability of applications.
- It is highly scalable. Cluster servers accommodate increasing needs conveniently.
- It makes maintenance easy. With a group of functional servers, you can choose to shut down one for maintenance while others handle its load.
- It makes it easier to manage the servers. You can manage and configure cluster servers without a hassle.
Limitations of Server Clustering
- It increases the infrastructure. Thus, you have more servers and more hardware to manage and monitor.
- It is not flexible. Not all types of servers can be clustered. Also, several applications are not supported by clustering design.
- It is not cost-effective. Server clustering is not only about investing in a few servers but about holding them together with a good server design. Some designs can be very expensive.
Server clustering is a great way to go about ensuring business continuity but it comes at a price not all organizations can afford. You should carefully weigh the pros and cons of clustering in your organization before going for it.