Fault tolerant systems

The Stratus ftServer systems are designed for mission critical solutions which require 100% availability. Replicated components, system software reliability features, and online service features combine to support uninterrupted uptime that has been proven to meet or exceed 99.999%.



ftServer 2700 Systems

img 2700Stratus brings continuous availability and affordability together in a server that is ideal for volume deployment at remote locations, branch offices or a management console for infrastructure virtualization management.




ftServer 4700 Systems

img 4700This mid-range server taps the power of Intels advanced quad-core processor technology and Intel QuickPath Architecture.  The 4700 system is optimized for flexibility and provides an agile foundation for next-generation cloud computing and web services applications.




ftServer 6400 Systems

img 6400The top-of-the-line ftServer 6400 system provides the highest levels of performance in a 2-socket system. Powered by Intel Xeon processors, the 6400 system is performance optimized for traditional large data center multi-tasking applications with high transaction rates.




ftserver Architecture

Each ftServer system integrates fully replicated hardware components that eliminate virtually any single point of failure and safeguard data integrity. The server automatically manages its replicated components, executing all processing in lockstep.

Because replicated components perform the same instructions at the same time, there is zero interruption in processing, zero loss of performance, and zero loss of data integrity even if a component fails. This means that, unlike a high-availability cluster, the Stratus continues to function while any issue is being resolved.

Lockstep Processing

Stratus ftServer systems use a standard dual-modular-redundancy (DMR) configuration that includes two CPU/memory units. If a CPU/memory unit fails or is offline for maintenance or diagnostic purposes, the system continues to operate normally with the remaining components, providing 99.999% uptime or better - on average less than five minutes of downtime annually.

Automated Uptime Layer

Our Automated Uptime Layer works in concert with lockstep technology to anticipate and prevent many software errors. Unlike typical servers or clusters, ftServer hardware and software handles such errors transparently, shielding the operating system, middleware, and application software. Even in-memory data is constantly protected and maintained.

Management and diagnostic features also capture, analyze, and notify Stratus of software issues. This allows support personnel to take a proactive approach to correcting software problems before they recur. Our hardened device drivers also add considerable reliability to the Windows environment on ftServer systems.