用于零开销日志的智能SSD固件

IF 1.4 3区计算机科学 Q4 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

IEEE Computer Architecture Letters Pub Date : 2023-02-09 DOI:10.1109/LCA.2023.3243695

Hanyeoreum Bae;Donghyun Gouk;Seungjun Lee;Jiseon Kim;Sungjoon Koh;Jie Zhang;Myoungsoo Jung

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引用次数: 0

摘要

我们提出Check0 SSD，这是一种智能SSD固件，可在不降低性能和缩短使用寿命的情况下提供最佳的系统级容错能力。具体而言，SSD固件会自动删除事务检查点，从而消除对闪存后端的冗余写入。为此，Check0 SSD在运行时对日志描述符/提交请求进行动态分类，并通过以自治方式检查主机的文件系统布局和日志区域信息，在日志和数据区域之间切换地址空间。我们的评估表明，Check0 SSD可以保护数据和元数据，存储寿命提高89%，同时与norecovery SSD相比表现出类似甚至更好的性能。

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Intelligent SSD Firmware for Zero-Overhead Journaling

We propose Check0-SSD, an intelligent SSD firmware to offer the best system-level fault-tolerance without performance degradation and lifetime shortening. Specifically, the SSD firmware autonomously removes transaction checkpointing, which eliminates redundant writes to the flash backend. To this end, Check0-SSD dynamically classifies journal descriptor/commit requests at runtime and switches the address spaces between journal and data regions by examining the host's filesystem layout and journal region information in a self-governing manner. Our evaluations demonstrate that Check0-SSD can protect both data and metadata with 89% enhanced storage lifetime while exhibiting similar or even better performance compared to the norecovery SSD.

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来源期刊

IEEE Computer Architecture Letters COMPUTER SCIENCE, HARDWARE & ARCHITECTURE-

CiteScore

4.60

自引率

4.30%

发文量

期刊介绍： IEEE Computer Architecture Letters is a rigorously peer-reviewed forum for publishing early, high-impact results in the areas of uni- and multiprocessor computer systems, computer architecture, microarchitecture, workload characterization, performance evaluation and simulation techniques, and power-aware computing. Submissions are welcomed on any topic in computer architecture, especially but not limited to: microprocessor and multiprocessor systems, microarchitecture and ILP processors, workload characterization, performance evaluation and simulation techniques, compiler-hardware and operating system-hardware interactions, interconnect architectures, memory and cache systems, power and thermal issues at the architecture level, I/O architectures and techniques, independent validation of previously published results, analysis of unsuccessful techniques, domain-specific processor architectures (e.g., embedded, graphics, network, etc.), real-time and high-availability architectures, reconfigurable systems.