Fail-Slow at Scale

Gunawi, Haryadi S.; Suminto, Riza O.; Sears, Russell; Golliher, Casey; Swaminathan, Sundararaman; Lin, Xing; Emami, Tim; Sheng, Weiguang; Bidokhti, Nematollah; McCaffrey, Caitie; Srinivasan, Deepthi; Panda, Biswaranjan; Baptist, Andrew; Grider, Gary; Fields, Parks; Harms, Kevin; Ross, Robert; Jacobson, Andree; Ricci, Robert; Webb, Kirk; Alvaro, Peter; Runesha, Hakizumwami Birali; Hao, Mingzhe; Li, Huaicheng

doi:10.1145/3242086

Cited by 66 publications

(1 citation statement)

References 27 publications

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“…Although SSDs are widely used in various fields, errors including hardware and firmware are still being reported including enterprise area [29][30][31][32][33]. The occurrence of such errors is mostly due to the characteristics of the flash memory introduced below.…”

Section: Reliability Of Flash Memorymentioning

confidence: 99%

Building Reliable Massive Capacity SSDs through a Flash Aware RAID-Like Protection

Kim

Park

2020

Applied Sciences

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The demand for mass storage devices has become an inevitable consequence of the explosive increase in data volume. The three-dimensional (3D) vertical NAND (V-NAND) and quad-level cell (QLC) technologies rapidly accelerate the capacity increase of flash memory based storage system, such as SSDs (Solid State Drives). Massive capacity SSDs adopt dozens or hundreds of flash memory chips in order to implement large capacity storage. However, employing such a large number of flash chips increases the error rate in SSDs. A RAID-like technique inside an SSD has been used in a variety of commercial products, along with various studies, in order to protect user data. With the advent of new types of massive storage devices, studies on the design of RAID-like protection techniques for such huge capacity SSDs are important and essential. In this paper, we propose a massive SSD-Aware Parity Logging (mSAPL) scheme that protects against n-failures at the same time in a stripe, where n is protection strength that is specified by the user. The proposed technique allows for us to choose the strength of protection for user data. We implemented mSAPL on a trace-based simulator and evaluated it with real-world I/O workload traces. In addition, we quantitatively analyze the error rates of a flash based SSD for different RAID-like configurations with analytic models. We show that mSAPL outperforms the state-of-the-art RAID-like technique in the performance and reliability.

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Section: Reliability Of Flash Memorymentioning

confidence: 99%

Building Reliable Massive Capacity SSDs through a Flash Aware RAID-Like Protection

Kim

Park

2020

Applied Sciences

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A Model of Actors and Grey Failures

Bocchi

Lange

Thompson

et al. 2022

Lecture Notes in Computer Science

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Existing models for the analysis of concurrent processes tend to focus on fail-stop failures, where processes are either working or permanently stopped, and their state (working/stopped) is known. In fact, systems are often affected by grey failures: failures that are latent, possibly transient, and may affect the system in subtle ways that later lead to major issues (such as crashes, limited availability, overload). We introduce a model of actor-based systems with grey failures, based on two interlinked layers: an actor model, given as an asynchronous process calculus with discrete time, and a failure model that represents failure patterns to inject in the system. Our failure model captures not only fail-stop node and link failures, but also grey failures (e.g., partial, transient). We give a behavioural equivalence relation based on weak barbed bisimulation to compare systems on the basis of their ability to recover from failures, and on this basis we define some desirable properties of reliable systems. By doing so, we reduce the problem of checking reliability properties of systems to the problem of checking bisimulation.

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Failure detection algorithm for Fail-Lagging model applied to HPC

Zhang

2022

J Supercomput

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Fail-Slow at Scale

Cited by 66 publications

References 27 publications

Building Reliable Massive Capacity SSDs through a Flash Aware RAID-Like Protection

Building Reliable Massive Capacity SSDs through a Flash Aware RAID-Like Protection

A Model of Actors and Grey Failures

Failure detection algorithm for Fail-Lagging model applied to HPC

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