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Performance Analysis of Utilizing Reed Solomon Code in Redundant Array of Independent Disk

2022· article· en· W4360996114 on OpenAlex
Zixuan Jiang

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAdvanced Data Storage Technologies
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsRAIDComputer scienceDisk arrayCoding (social sciences)Parallel computingCode (set theory)Computer hardwareMathematicsProgramming language

Abstract

fetched live from OpenAlex

The Redundant array of independent disks (RAID) is a method of storing the same data on multiple hard disks in different places. By placing data on multiple hard disks, I/O operations can overlap in a balanced way, improving performance. RAID utilizes multiple disks to achieve higher data reliability at the cost of reduced storage capacity. RAID6 has become a popular option for RAID disk array due to its capability to recover two disk failures in a setup with two parity disks. A RAID6 setup usually includes several data disks and two parity disks. Although the general setup is similar, in practice there are a variety of encoding scheme to achieve similar effect. Two commonly used coding schemes are Reed-Solomon (RS) code and EVENODD code. This article will discuss the effectiveness of RS code in theory, by calculating the data I/O operation needed to read, write and rebuild disk in both coding schemes, and compare the result against that of EVENODD coding. Simulation of RAID6 structure will also be performed, both under ideal condition and non-ideal condition, to consider the influence of real factor such as degrading disk has on the effectiveness of such RAID structures.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.425
Threshold uncertainty score0.356

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.003
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.024
GPT teacher head0.264
Teacher spread0.240 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Quick stats

Citations2
Published2022
Admission routes1
Has abstractyes

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