Translated Titles

Load Balancing Based on Host Bus Adapters for Storage Area Networks


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



Volume or Term/Year and Month of Publication

25卷11期(2005 / 11 / 01)

Page #

954 - 957

Content Language


Chinese Abstract


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