HECURA: Applicability of Object-Based Storage Devices in Parallel File Systems

随着时间的推移，处理速度和磁盘密度的不断提高提高了计算能力，但最根本的进步来自于组件交互方式的改变。将某些操作的责任从主机处理器委派给智能外设可以提高应用程序的性能。传统的存储技术是基于简单的固定大小的访问，几乎没有磁盘驱动器的帮助，但是一种新兴的基于对象的存储设备（osd）标准正在被采用。这些设备将在性能、可扩展性和管理方面提供改进，并有望很快成为商品。pi将检查并行文件系统（特别是PVFS2）的需求与OSD的能力之间的不匹配的多个方面。主题领域包括将数据映射到对象、元数据、传输、缓存和可靠性。pi将研究在并行文件系统中使用OSD的可行性，发现适应这种高性能使用模型的技术，并根据需要对当前OSD标准提出扩展建议。

While continued improvements in processing speeds and disk densities improve computing over time, the most fundamental advances come from changing the ways in which components interact. Delegating responsibility for some operations from the host processor to intelligent peripherals can improve application performance. Traditional storage technology is based on simple fixed-size accesses with little assistance from disk drives, but an emerging standard for object-based storage devices (OSDs) is being adopted. These devices will offer improvements in performance, scalability and management, and are expected to be available as commodity items soon.The PIs will examine multiple aspects of the mismatch between the needs of a parallel file system, in particular PVFS2, and the capabilities of OSD. Topic areas include mapping data to objects, metadata, transport, caching and reliability. The PIs will examine the feasibility of OSDs for use in parallel file systems, discovering techniques to accommodate this high performance usage model, and suggest extensions to the current OSD standard as needed.