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Scaling and provisioning virtual servers

Michael Hayes | March 7, 2011
While virtual servers have proven a boon in the data center, they don't address the challenge of incrementally adding server capacity and automatically distributing load across them. As a result, the responsiveness and availability of a highly utilized Web application, such as Microsoft SharePoint, can deteriorate when the virtual machine it runs on is out of capacity.

Removing load associated with these requirements is simple and transparent when leveraging dedicated hardware within advanced ADCs. The ADC identifies when it's necessary to provide these capabilities, and then uses specially designed high-performance hardware to do the work.

The business impact of using hardware to offload servers is significant. A typical server can manage hundreds of SSL transactions each second. By comparison, an ADC with hardware-based SSL acceleration can perform 14,000 SSL transactions/sec and offload the requirement to perform any encryption from the servers behind it. The number of servers necessary to support application users can be reduced, as the servers no longer have to process SSL security and encryption.

A critical component to achieving the goals of virtualization is ensuring that the distribution of work is balanced across many servers, each possibly having different capacity. Virtualization-aware ADCs provide high application availability and load balancing for virtualized data center environments. They enable IT administrators to leverage new and existing servers to make the most cost-efficient and effective traffic distribution possible.

Virtualization and application delivery technologies are here to stay and together can help transform the economics of the data center for years to come.

Coyote Point Systems Inc. is a leader in application delivery, acceleration and load balancing solutions that enable IT personnel to have greater control over their Web and application servers. Coyote Point's Equalizer, Envoy and VLB products provide the industry's foremost combination of performance, affordability and ease of use, offering 24/7 server high-availability, optimized server and WAN performance, flexible scalability and secure application and network access.


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