2 . 3 Orpg Review : Clustering , Database and System Management

Clustering is a widely used architecture to implement scalable, highly-available systems. The ORPG clustering technology is based on a loosely-coupled multi-tasking software architecture. It allows the ORPG system to run on multiple nodes (UNIX hosts, e.g. workstations and PCs) and thus, makes ORPG scalable. When the processing resource requirement increases beyond the current RPG hardware limitation, new hardware such as PCs can be incrementally added to the system to scale up the processing capability.