DC:Small: ProActive: A RAID Protection Activator for High Availability

DC:Small: ProActive：实现高可用性的 RAID 保护激活器

• 批准号: 0916859
• 负责人: Sharad Seth
• 金额: $ 47.47万
• 依托单位: University of Nebraska-Lincoln
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0916859&HistoricalAwards=false
• 关键词: DC; Small; ProActive; RAID; Protection

Partial or complete disk failures are becoming so common and frequent in modern-day large-scale data centers that they are now considered the norm rather than the exception. It is thus of paramount importance to develop novel approaches to effectively and significantly supplementing and improving the existing RAID protection mechanisms, with the goal of providing high reliability and availability for RAID-structured storage systems so that they are capable of tolerating partial, complete, and multiple disk faults while delivering acceptable, non-stop services to the users.This project seeks to develop a holistic framework, called a RAID protection activator (ProActive), to address the fundamental and ever-increasing availability challenge facing RAID-structured storage systems. ProActive exploits application workload intensity and data/parity management and intelligently leverages rich available spare storage resources in large-scale data centers to address the efficiency problem of the existing state-of-the-art availability mechanisms for RAID. ProActive will develop solutions to handle the increasingly more frequent partial and complete disk failures in RAID-structured storage systems based on the design goals of significantly supplementing and improving existing fault-detection, fault-tolerance, and fault-recovery mechanisms.The broader impact of the project lies in its (1) research development that impacts and enriches fields as diverse as high-performance computing, availability and reliability in high-end computing systems; (2) infrastructure development that enhances research and education at UNL and, through accessibility via public domain, the high performance and data-intensive computing community; and (3) educational development that exposes graduate and undergraduate students to cutting edge research in highly available storage systems.

部分或全部磁盘故障在现代大型数据中心中变得如此常见和频繁，以至于它们现在被认为是常态，而不是例外。因此，开发新的方法来有效和显著地补充和改进现有的RAID保护机制是至关重要的，目标是为RAID结构的存储系统提供高可靠性和可用性，以便它们能够容忍部分、完全和多个磁盘故障，同时向用户提供可接受的、不间断的服务。本项目旨在开发一个整体框架，称为RAID保护激活器(Proactive)，以解决RAID结构存储系统面临的基本且不断增加的可用性挑战。主动式利用应用程序工作负载强度和数据/奇偶校验管理，并智能地利用大型数据中心中丰富的可用备用存储资源，以解决现有最先进的RAID可用性机制的效率问题。Proactive将根据显著补充和改进现有的故障检测、容错和故障恢复机制的设计目标，开发解决方案，以处理RAID结构存储系统中日益频繁的部分和完全磁盘故障。该项目的更广泛影响在于：(1)研究开发，影响和丰富了高性能计算、高端计算系统的可用性和可靠性等不同领域；(2)基础设施开发，加强了UNL的研究和教育，并通过公共领域的可访问性，提高了高性能和数据密集型计算界的研究和教育；以及(3)教育发展，使研究生和本科生接触到高可用性存储系统的尖端研究。