Patent ID: 7349958
Filing Date: 2008-03-25
Classification: H04L,Y10S

Abstract:
1. A storage area network, comprising: a storage system for providing storage of system data; at least one application host running an application thereon and accessing data on the storage system; at least one I/O performance gateway, disposed between the at least one application host and the storage subsystem, for intercepting I/O operations; a Service Level Agreement (SLA) server, coupled in parallel with the at least one I/O performance gateway and the storage system, for controlling the at least one I/O performance gateways based on service level agreements; and a database, coupled to the SLA server, for storing service level agreements; wherein the at least one I/O performance gateway sends statistics data to the SLA server and receives I/O control requests from the SLA server to control I/O operations of the performance gateway; wherein the SLA server further comprises: