a software layer for boosting the throughput of a computer file server by reducing the number of required mechanical accesses to the physical storage is provided . the throughput boost is achieved through the combination of extending the data requests along the file path and inserting double - buffered paths in front of each file accessed . the software layer resides on top of the file system , where it can extend requests along the file path , work with network requests arriving over any network using any protocol , and work with any storage system attached to the server . the software layer can also be used in a server to accelerate requests made by local applications in the server or it may be used in any other computer to accelerate requests made by local applications that require data from local storage .