Obtaining High Performance for Storage Outsourcing
FAST '02 Proceedings of the Conference on File and Storage Technologies
A Performance Analysis of the iSCSI Protocol
MSS '03 Proceedings of the 20 th IEEE/11 th NASA Goddard Conference on Mass Storage Systems and Technologies (MSS'03)
On the elusive benefits of protocol offload
NICELI '03 Proceedings of the ACM SIGCOMM workshop on Network-I/O convergence: experience, lessons, implications
TCP offload is a dumb idea whose time has come
HOTOS'03 Proceedings of the 9th conference on Hot Topics in Operating Systems - Volume 9
Storage over IP: when does hardware support help
FAST'03 Proceedings of the 2nd USENIX conference on File and storage technologies
A performance comparison of NFS and iSCSI for IP-networked storage
FAST'04 Proceedings of the 3rd USENIX conference on File and storage technologies
Performance study of iSCSI-based storage subsystems
IEEE Communications Magazine
Research works on cluster computing and storage area network
Proceedings of the 3rd International Conference on Ubiquitous Information Management and Communication
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In this paper, an IP-SAN access trace method is proposed and its evaluation is presented. IP-SAN and iSCSI are expected to remedy problems of Fibre Channel (FC)-based SAN. Servers and storage cooperatively work with communications through TCP/IP in IP-SAN system, thus an integrated analysis of both sides is considered to be significant for achieving better performance. Our system can precisely point out the cause of performance degradation when IP-SAN is used for a remote storage access. In experiment of parallel iSCSI access in a high-latency network, the total performance is limited by a parameter in an implementation of the SCSI layer in the iSCSI protocol stack. Based on the result obtained with our IP-SAN access trace system, the parameter in the layer is modified. As a result, more than 30 times performance improvement is achieved compared with the default value case. Thus it is effective to monitor all the layers in the iSCSI protocol stack and execute an integrated analysis, using our system.