Title

存储区域网络基于主机接口卡的负载均衡

Translated Titles

Load Balancing Based on Host Bus Adapters for Storage Area Networks

Authors

谭毓安(Yu-An Tan);曹元大(Yuan-Da Cao);王佐(Zuo Wang)

Key Words

负载均衡 ; I/O路径 ; 性能评价 ; 存储区域网络 ; load balancing ; I/O paths ; performance evaluation ; storage area network

PublicationName

北京理工大學學報

Volume or Term/Year and Month of Publication

25卷11期(2005 / 11 / 01)

Page #

954 - 957

Content Language

簡體中文

Chinese Abstract

为提高存储区域网络中主机的I/O吞吐能力,在主机上加入冗余路径驱动程序,对逻辑单元(LUN)的I/O请求进行处理。将LUN的I/O请求分配到它的所有路径上,使主机的负载均匀地分布在存储网络中。应用排队理论的多服务员聚集模型,分析了总吞吐能力与主机负载、主机接口卡(HBA)数目、HBA性能之间的关系。实现了基于HBA的负载均衡算法,提高了主机的吞吐能力,缩短了I/O平均响应时间。

English Abstract

A storage path driver (SPD) is proposed and implemented to provide dynamic load balancing across multiple I/O paths between the hosts and the storage subsystems. I/O requests bound for the LUNs (logical units) are dispatched to parallel physical paths by the SPD driver to distribute the host load to the storage network. The multiple server congregation model from queue theory is applied to analyze the relationship between the overall throughput and several factors, such as the host load, number of host bus adapters (HBAs) and HBAs' performance. The load balance algorithm based on HBAs is implemented to increase the I/O throughput and shorten the average I/O response time.

Topic Category 基礎與應用科學 > 基礎與應用科學綜合
工程學 > 工程學綜合