everRun MX provides full fault tolerance to applications that require 100 percent uptime, said Jim Welch, president and CEO of the Littleton, Mass.-based vendor.
It combines the two standard Windows servers into a single operating environment which provides complete redundancy of all underlying hardware and data. To applications, the two servers are presented as a single operating environment which can keep the applications running should a component or system fail.
Fault tolerance is not the same as high availability, said Rob Ciampa, vice president of marketing and product management for Marathon.
"Our approach has been to prevent downtime, and not focus on recovery," Ciampa said. "This becomes a challenge as the number of processor cores in a server continues to rise."
Next: Why Fault Tolerant Systems?