CSR: Small: Advancing Operating System Interfaces to Solid-State Storage

CSR：小：推进操作系统与固态存储的接口

基本信息

批准号：
1218485
负责人：
Michael Swift
金额：
$ 48.71万
依托单位：
University of Wisconsin-Madison
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2012
资助国家：
美国
起止时间：
2012-09-01 至 2017-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1218485&HistoricalAwards=false
关键词：
CSR Small Advancing Operating System

项目摘要

Solid-state storage technologies, such as flash, phase-change memoryand memristors promise large-capacity storage at speeds much fasterthan disk. To date, mainstream use of these technologies has been as areplacement for disks, storing a disk-oriented file system. However,solid-state storage is and will remain far more expensive thandisks. Thus, it will often be used as a cache or special-purposestore, and not as the main repository of data.This proposal develops new interfaces to solid-state storage thatleverage its new features, such as access via ordinary memoryinstructions, and its role in large software systems as a middle layerbetween memory and disk. It focuses on two forms of solid-statestorage: flash memory, common in solid-state drives and mobiledevices, and forthcoming storage-class memory, which compared to flashpromises lower latency, better endurance, and access as memory ratherthan as a device.This research addresses important concerns about using solid-statestorage: how best to use the capabilities of these devices to improvespecific applications or use cases, such as caching; how to provideaccess to internal management capabilities of solid-state storagedevices, such as address translation and garbage collection, toapplications; how to remove software layers between an application andstorage to reduce latency; and how to provide reliable storage whileremoving many of the layers that currently provide reliability.

固态存储技术，例如Flash，相位变化内存和回忆录，保证以速度更快地存储大容量的存储。迄今为止，这些技术的主流使用一直是磁盘的设备，并存储了面向磁盘的文件系统。但是，固态存储是并且将保持更昂贵的thandisks。因此，它通常将用作缓存或特殊purposestore，而不是作为数据的主要存储库。此提案为实现其新功能而开发了新的接口来实现其新功能，例如通过普通的存储器结构访问以及在大型软件系统中作为中间层和磁盘之间的大型软件系统的作用。 It focuses on two forms of solid-statestorage: flash memory, common in solid-state drives and mobiledevices, and forthcoming storage-class memory, which compared to flashpromises lower latency, better endurance, and access as memory ratherthan as a device.This research addresses important concerns about using solid-statestorage: how best to use the capabilities of these devices to improvespecific applications or use cases, such as caching;如何为固态存放者的内部管理功能提供提供，例如地址翻译和垃圾收集，toapplications；如何在应用程序和存储之间删除软件层以减少延迟；以及如何提供可靠的存储，同时介绍当前提供可靠性的许多层。