Improving Operating Systems by Replacing Hard Disks with Persistent Solid State Memory

在消费产品中使用持久性RAM增加了其容量并降低了其价格。这些趋势表明，在不久的将来，典型的计算机可能包含大量这种内存。该项目将研究如何更改工作站和服务器机器的操作系统设计，以充分利用大量持久RAM的可用性。特别是，该项目将研究使用持久RAM作为机器的主要稳定存储，取代硬盘。该项目将进行测试设计和实施，以证明该概念的可行性，并建议该方法的可能优点。这个实现将在一个带有2gb或更多RAM的Linux系统上执行，该RAM将作为其主要存储设备，其中一个硬盘仅用于大文件，例如视频和音频数据。该项目将证明在速度和简单的系统优势。它还将指出通过使用持久内存来改进操作系统服务的有趣可能性。

The use of persistent RAM in consumer products has increased its capacity and decreased its price. These trends suggest that typical computers could contain large quantities of this kind of memory in the near future. This project will investigate how to change operating system design for workstation and server machines to make best use of the availability of large quantities of persistent RAM. In particular, the project will investigate the use of persistent RAM for a machine's primary stable storage, replacing hard disks. The project will perform a test design and implementation to demonstrate the feasibility of the concept and to suggest possible advantages of the approach. This implementation will be performed on a Linux system augmented with 2 Gbytes or more of RAM that will serve as its primary storage device, with a hard disk used only for large files, such as video and audio data. The project will demonstrate advantages in speed and simplicity of the system. It will also point out interesting possibilities for improvements in operating system services made possible by the use of persistent RAM.