The system is designed to provide high levels of reliability, availability, and serviceability (RAS). All components in the system's data path are redundant so that the data path has no single point of failure. If one component fails, the system switches to the alternate component automatically. The following components have been designed for high-availability:
A configuration that has dedicated hot spares in every storage tray and array hot spares in every pool supports high availability.
The system uses several mechanisms to recognize a hardware failure. When a component recognizes that it has failed or the management software detects a failure, the component is removed from active service and its functions are assigned to other components of the system. The system generates an error event and records it in log files located on the Storage Service Processor.