On use of operation semantics for parallel iSCSI protocol

Abstract

iSCSI [1,2], is an emerging communication protocol enabling block data transport over TCP/IP network. The iSCSI protocol is perceived as a low cost alternative to the FC protocol for networked storages [8, 9, 10, and 11]. This paper uses a storage architecture allowing parallel processing of iSCSI commands and presents two novel techniques for improving the performance of iSCSI protocol - the first is the elimination technique for reducing latency caused by redundant overwrites and second technique reduces the latency caused due to multiple reads to same storage sector. The performance analysis shows that use of operation semantics has the potential to improve performance as compared to the existing iSCSI storages. © Springer Science+Business Media B.V. 2008.