Design for Intelligent Storage Controllers in IP SAN

Abstract

C-DAC(Formerly NCST), Kharghar, Navi mumbai or one request from clients served using multiple Abstract-We present a design of intelligent storage storage subsystems. Implementing virtualization in the controllers in IP SAN environment to overcome the controllers hides the physical storage complexity and performance issues of IP SAN. The controllers are provides scalability. designed with clustering features to introduce parallelism thus increasing the performance of IP SAN. Also This paper describes the design of intelligent storage implementing the virtualization entity in controller hides controllers in the IP SAN environment. The storage the physical storage complexity. The performance controller is intelligent in the sense, it services a client bottlenecks created by introducing storage controllers can request in minimum time while providing scalability be overcome by implementing virtualization with packet and flexibility. It does so by using in-band forwarding system and global cache, thus avoiding virtualization, global cache, optimization and clustering. encapsulation-decapsulation overheads and disk accesses . . a .for frequently accessed data respectively. The in-band For high availability and guaranteed performance, we approach used in the design of controllers gives complete prefer in-band (symmetric) virtualization technique to control over the storage network, which is necessary for implement the storage controllers. In this technique, high availability and guaranteed performance. Also the virtualization device actually sits in the data path controllers in clustering environment provide the benefits between the host and storage. In [7], it proposes a like high availability, scalability, load balancing and method to build a switch and route subsystem to failover.dispatch iSCSI PDUs to the processing end nodes, but each host and storage has to apply a new interface