Site Load Balancing & Fault Tolerance

Disaster recovery is the primary reason that many companies deploy server resources at multiple locations. The role of Site Load Balancing in this case is to detect the failure at the active site and automatically divert requests to the standby sites. Q-Balancer Site Load Balancing can be used to enable customers to have better user experience by directing their requests to the closest active sites.

Q-Balancer Site Load Balancing is a DNS based system that manipulates DNS response based on the availability and performance profile of the data centers. The technology gives you ultimate control in your application delivery service. Ensure that users from certain geographic locations are sent to the right data center. Each location tracks the status of the other location and provides for inbound load balancing between all the locations, or in the event of a failure of a site, redirect all traffic to the sites that are UP and reachable from the internet. This ensures zero downtime for clients and employees who can still access the servers providing business continuity while the Infrastructure team can analyze and bring up the other site.

In the diagram illustrated above, a web request is trying to access the website from Europe, and would be served by the server that is located in UK rather than the server in Asia. Q-Balancer Site Load Balancing is useful for its optimal direction of traffic between sites. Q-Balancer Site Load Balancing monitors the health of the slave servers in a regular time interval, and directs traffic to those servers for best response. It is also useful for disaster recovery with its ability to ensure the continuity across server resources located in multiple locations.


  • Increased reliability and availability for multi-site deployments
  • Faster server responsiveness
  • Complying regulatory and security requirements
  • Delivering localized content
  • Better user experience