clusteroid81 asks: "I've been working with customers who run large commercial applications on big iron (16-32 symmetric multi-processor systems - 64GB or more memory ). There are always numerous other front-end servers involved, but the application on the back end server is often difficult to spread across multiple systems or clusters due to the application architecture. Scaling is done by increasing memory and processor counts. As things progress, the bottleneck is usually contention within the application or operating system. Are there folks here on Slashdot who work with large single system commercial applications? What kind of processor counts and memory do the applications have and how well do they scale?"