Performance Analysis of iSCSI Middleware Optimized for Encryption Processing in a Long-Latency Environment

K. Kamisaka, Saneyasu Yamaguchi, M. Oguchi
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引用次数: 2

Abstract

Since IP-SAN allows us to reduce initial costs and management costs of storage by using IP networks, iSCSI, common protocol in IP-SAN, is becoming more important. Although one of the key issues for iSCSI is a security measure to access remote storage over IP networks, this is not necessarily established yet. iSCSI can employ IPsec that offers a function of strong encryption. However, the IPsec encryption processing degrades throughput of storage access and increases its CPU load. In addition, it is difficult to execute encryption processing efficiently, because IPsec layer is located in a lower-level. In this paper, we implemented a middleware system of executing encryption processing in the upper-layer for the communication using iSCSI securely and effectively. Moreover, we simulated the idea of optimization of encryption processing and evaluated its performance by running parallel processes in a long-latency network. As a result, optimization method of encryption processing is more efficient than that of IPsec in a long-latency network
长时延环境下优化加密处理的iSCSI中间件性能分析
由于IP- san允许我们通过使用IP网络来降低初始成本和管理存储成本,因此IP- san中的通用协议iSCSI变得越来越重要。尽管iSCSI的关键问题之一是通过IP网络访问远程存储的安全措施,但这还没有必要建立起来。iSCSI可以采用IPsec, IPsec提供了强加密功能。但是,IPsec加密处理降低了存储访问的吞吐量,增加了CPU的负载。另外,由于IPsec层处于较低的层次,很难有效地执行加密处理。本文实现了一个在上层执行加密处理的中间件系统,使iSCSI通信安全有效。此外,我们模拟了优化加密处理的思想,并通过在长延迟网络中运行并行进程来评估其性能。因此,在长时延网络中,加密处理的优化方法比IPsec更有效
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