Designing Content Switching Solutions

Chapter 14. Scaling Server Load Balancing Within a Data Center

Now that we have covered server load-balancing (SLB) functionality and design approaches in detail, we will focus on how a load-balanced environment can be scaled. With the passage of time as the user base increases, the key question that comes up is how to scale an application such that user experience is not compromised. Typically, an application is scaled simply by adding more servers to the load-balanced server farms within the same data center or by replicating the application in another data center. Having the same application exist in two in-service data centers achieves dual purposes—one being scalability and the other being disaster recovery. There are several ways to provide ...