The cluster technologies in public networks are the new perspective direction of failure safe server systems. It’s technology of the future. Cluster server systems allow lifting uptime of your dedicated hosting solution up to 100%! Hard to believe, but it is absolutely true, clustered systems show tremendous stability!

Clustered server systems is designed to eliminate the problems inherent with dedicated / collocation hosting infrastructures. Basis of effective cluster is brand-name servers, fast data links, data centers with reliable system of the basic and reserve feed. There are two main kinds of cluster systems: local clustering and global clustering. These kinds differ on load balancing.

Local clustered server system distributes loading on a server within the limits of one data center. The principle of this kind system work is:

• in the normal mode all data from the customer’s servers are mirrored to the local backup servers in real-time mode;
• in case of server (or servers) failure all functions of failed servers transfers to the local backup servers in seconds.

The global clustered server system distributes loading on a server within the limits of several data centers which can be on significant removal from each other. These data centers can be in different cities, the countries and even on different continents! By using this solution you are independent from both server and data-center problems. Such problem can become long switching-off data center from an electric feed or terroristic attack to its infrastructure.

The principle of this kind system work is:

• in the normal mode all data from the customer’s server are mirrored to the remote backup servers in real-time mode;
• in case of server (or servers) failure all functions of failed servers transfers to the remote backup servers in seconds.