Analytical System Tools for iSCSI Remote Storage Access and Performance Improvement by Optimization with the tools

被引：0
|
作者：
Higa, Reika [1 ]
Oguchi, Masato [1 ]
Matsubara, Kosuke [2 ]
Okamawari, Takao [2 ]
Yamaguchi, Saneyasu [3 ]
机构：
[1] Ochanomizu Univ, Grad Sch Humanit & Sci, Bunkyo Ku, 2-1-1 Otsuka, Tokyo 112, Japan
[2] Softbank Telecom Corp, Minato Ku, Tokyo, Japan
[3] Kogakuin Univ, Dept Comp Sci & Commun Engn, Tokyo 160, Japan
来源：
2009 IEEE 3RD INTERNATIONAL SYMPOSIUM ON ADVANCED NETWORKS AND TELECOMMUNICATION SYSTEMS (ANTS 2009) | 2009年
基金：
日本科学技术振兴机构;
关键词：
iSCSI; SAN; TCP; IP; RTT;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
iSCSI is one of the most popular protocols among the SAN (storage area network) working on an IP network. iSCSI is a standard to encapsulate a SCSI command into a TCP/IP packet, thus we can make an access to a storage system with commoditized IP devices only. In this paper, iSCSI sequential write access for a remote backup system is focused. It is well known that iSCSI experiences performance deterioration under a high latency environment. The storage access by iSCSI has multiple hierarchical protocols. Due to this complicated structure, it is very difficult to identify the performance bottleneck that causes the deterioration. Therefore, system tools which can analyze the complicated layered structure are required. We have developed system tools that enable us to monitor the hierarchical protocols. As a result, we have identified the cause of the iSCSI performance degradation problem. We then fixed the problem and confirmed that one can obtain the performance close to the theoretical limit.
引用
收藏
页码：70 / +
页数：2
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