Integration of Performance Isolation, Bandwidth Management and Burst Handling for QOS Management in IP SANs

The increasing number of Information technology Users around the world has led to tremendous increase in the amount of data that requires storage. In response to this challenge, new storage area network architectures based on Ethernet (IP) have evolved. With the coexistence of storage traffic with other types of traffic in the same IP network, it is important to offer storage traffic QOS guarantees to prevent performance degradation for storage users. Regrettably, the storage device itself does not provide any capability of guaranteeing storage QOS.Commercially available storage arrays offer only limited support providing performance isolation bandwidth management and burst handling. To address this issue this paper introduces an integrated solution that enforces performance isolation, bandwidth management and burst handling among IP SANs.Through experiments it was established that the proposed solution is able to take advantage of its knowledge of traffic patterns to adjusts priorities to provide QOS(Quality of service) close to the service level objective(SLO) of storage users