Home > Storage > PowerScale (Isilon) > Product Documentation > Storage (general) > Dell PowerScale: Considerations and Best Practices for Large Clusters > What is the application’s performance profile?
Storage stack performance can be determined by measuring ‘normal’ performance levels over time and determining how to recognize when it deviates from this mean. Each cluster has its own unique configuration, dataset and workload, so will yield a unique result from its ecosystem. This effect is amplified at large and extra-large cluster scale, indicating the need for diligent and detailed monitoring and observation.