I-Corps: Flash in Action for High-Performance and Low-Energy Web Content Storage

I-Corps：用于高性能和低能耗 Web 内容存储的闪存

• 批准号: 1402342
• 负责人: Umakishore Ramachandran
• 金额: $ 5万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-02-01 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1402342&HistoricalAwards=false
• 关键词: Corps; Flash; Action; Performance; Low

This project addresses the use of flash memory as the foundation for multi-tiered storage systems. Digital content (e.g., text, image, sound, video, etc.) has experienced explosive growth. Internet media providers (e.g., Facebook, Flicker, YouTube, Hulu, Netflix, etc.) are facing huge I/O demand for delivering content. And, due to the increasing video traffic on the web, backend storage servers not only need increased storage capacity but also increased storage bandwidth to serve the web clients in a timely manner. Hard disk drives (HDDs) have advanced in capacity per dollar while main memory (in the form of DRAM) has advanced in speed per dollar. Recently, flash memory technology has been getting attention from industry due to its significant cost decrease. Flash-based Solid-State Drives (SSDs) are now at the price point where they can bridge the capacity-speed gap between HDDs and DRAM. In addition, energy consumption of flash memory is far less than the two traditional storage technologies. This project proposes that multi-tiered storage architecture is a compelling vehicle to optimize capacity, speed, and energy consumption of storage by exploiting the advantages of all three technologies Storage devices make up nearly 40% of the energy consumption of a typical data center -- consequently, storage servers should not only have high capacity and deliver high performance, but also be energy efficient. From an environmental perspective, it is extremely important to devise solutions that can reduce the carbon footprint of data centers. A multi-tiered, web storage system that uses flash memory for caching is a promising solution for performance, capacity, and energy efficiency. This project's technology presents an opportunity for CDN providers and web service providers to optimize the performance and energy efficiency of their storage systems. While the primary customers of this technology will be corporations that run a large number of web servers, there is an environmental benefit from the carbon emission reduction of the data centers run by such big web corporations.

该项目介绍了使用闪存作为多层存储系统的基础。数字内容（例如文本，图像，声音，视频等）经历了爆炸性的增长。互联网媒体提供商（例如，Facebook，Flicker，YouTube，Hulu，Netflix等）面临着巨大的I/O需求。而且，由于网络上的视频流量增加，后端存储服务器不仅需要增加存储容量，而且还需要增加存储带宽以及时为Web客户端提供服务。硬盘驱动器（HDD）的每一美元容量提高，而主内存（以DRAM的形式）以每美元的速度提高。最近，由于其成本大幅降低，闪存技术一直引起行业的关注。基于Flash的固态驱动器（SSD）现在处于可以弥合HDD和DRAM之间容量速度差距的价格。此外，闪存的能源消耗远低于两种传统的存储技术。该项目建议，多层存储架构是一种令人信服的工具，可通过利用所有三种技术存储设备的优势来优化容量，速度和能源消耗，构成了典型数据中心能源消耗的近40％，因此，存储服务器不仅应该具有高功率并具有高性能，还可以提供高能。从环境的角度来看，设计可以减少数据中心碳足迹的解决方案非常重要。使用闪存进行缓存的多层网络存储系统是性能，容量和能源效率的有前途的解决方案。该项目的技术为CDN提供商和Web服务提供商提供了一个机会，以优化其存储系统的性能和能源效率。尽管该技术的主要客户将是运营大量网络服务器的公司，但由于碳排放量减少了由此类大型网络公司运营的数据中心的碳排放量受益。