Random Array of Inexpensive Servers (RAIS)

Quantum Choice's N-Tier architecture does more than improve your organization's ability to change with the market and interface with emerging applications. N-Tier architecture enables healthcare organizations to inexpensively increase performance and availability by using an RAIS strategy

Scaling out at the front end is particularly beneficial for web server implementations. This is accomplished with an array of servers that provide the same services to all clients. Incoming requests are distributed across the server array, which ensures no single point of failure. To improve performance and availability, another server is simply added to the array. If there is a failure, the load is automatically distributed across the available servers, maintaining performance and availability.

N-Tier architecture's ability to scale out the middle layer offers the greatest advantages to healthcare organizations. Like the front-end, scaling out the middle layer allows organizations to incrementally increase computing power. Scaling out in the middle tier typically involves the use of 4-way or 8-way servers to accommodate the software and processing demands of middleware applications. Plexis Quantum Choice uses a .NET platform, so the middleware tools needed to configure scale-out solutions are built right into the system.