文章基本信息

标题：Automatic Parallelism Tuning Mechanism for Heterogeneous IP-SAN Protocols in Long-fat Networks
本地全文：下载
作者：Takamichi Nishijima ; Hiroyuki Ohsaki ; Makoto Imase 等
期刊名称：Information and Media Technologies
电子版ISSN：1881-0896
出版年度：2013
卷号：8
期号：3
页码：739-748
DOI：10.11185/imt.8.739
出版社：Information and Media Technologies Editorial Board
摘要：In this paper we propose Block Device Layer with Automatic Parallelism Tuning ( BDL-APT ), a mechanism that maximizes the goodput of heterogeneous IP-based Storage Area Network (IP-SAN) protocols in long-fat networks. BDL-APT parallelizes data transfer using multiple IP-SAN sessions at a block device layer on an IP-SAN client, automatically optimizing the number of active IP-SAN sessions according to network status. A block device layer is a layer that receives read/write requests from an application or a file system, and relays those requests to a storage device. BDL-APT parallelizes data transfer by dividing aggregated read/write requests into multiple chunks, then transferring a chunk of requests on every IP-SAN session in parallel. BDL-APT automatically optimizes the number of active IP-SAN sessions based on the monitored network status using our parallelism tuning mechanism. We evaluate the performance of BDL-APT with heterogeneous IP-SAN protocols (NBD, GNBD and iSCSI) in a long-fat network. We implement BDL-APT as a layer of the Multiple Device driver, one of major software RAID implementations included in the Linux kernel. Through experiments, we demonstrate the effectiveness of BDL-APT with heterogeneous IP-SAN protocols in long-fat networks regardless of protocol specifics.
关键词：Automatic Parallelism Tuning (APT);IP-based Storage Area Network (IP-SAN);Block Device Layer;long-fat networks