Load balancing is one the best technologies used for distributing workload among several servers, network links, central processing units and disk drive. These days more and more companies are integrating load balancers to increase their throughput and business reliability. A load balancer stabilizes the flow of requests across multiple servers, and forestalls any single point of failure. Apart from balancing the overloads, this robust balancing concept improvises the user response time and overall application accessibility.

Let's take an example to fathom the significance of Load Balancing: suppose you request a page from any news portal, the load balancer will accept your request and send across the page to the multiple servers for further processing. Let's presume if the news portal servers are not load balanced, will your request not get processed? Yes, it will. However, you would be encountering delayed website response as the single server responding to your query would be handling hundreds of requests in a sequence at the same time. Overloaded or heavy websites will keep your users waiting in a queue, and ultimately deteriorate your business image. On the other hand, a load balancing device will distribute your incoming requests amongst multiple servers, network links, etc, which incessantly improvise site response time and amplify efficiency. Checkout the key benefits of having Load Balancers:

  -  Many incoming requests can be handled simultaneously

  -  Quick users response time and explicit workload distribution

  -  Exceptional connectivity that enhances overall performance level

  -  Dedicated firewall options to protect servers from unwarranted spikes

  -  Enhance the capacity of your IP servers by evenly distributing incoming traffic

Software and hardware are the two major kinds of load balancing. The Apache Web Server is one of the finest examples, which distributes incoming request to the multiple servers.