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Architectures and algorithms for on-line failure recovery in redundant disk arrays
1994
Distributed and parallel databases
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The data layout techniques this paper investigates are variations on the declustered parity organization, a derivative of RAID Level 5 that allows a system to trade some of its data capacity for improved ...
The two key issues addressed are the data layout, the mapping by which data and parity blocks are assigned to physical disk blocks in an array, and the reconstruction algorithm, which is the technique ...
In this section we discuss goals for a disk array layout, present our layout for declustered parity based on balanced incomplete block designs, and contrast it to a layout proposed by Merchant and Yu ...
doi:10.1007/bf01266332
fatcat:wrfq7jllqrhmboau5bdq4gzfci
Parity declustering for continuous operation in redundant disk arrays
1992
Proceedings of the fifth international conference on Architectural support for programming languages and operating systems - ASPLOS-V
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We describe and evaluate a strategy for declustering the parity encoding in a redundant disk array. ...
This declustered parity organization balances cost against data reliability and performance during failure recovery in highly-available parity-based arrays for use in continuous-operation systems. ...
The Declustered Parity Layout Policy Figure 2-1 illustrates the parity and data layout for a left-symmetric RAID 5 redundant disk array [Lee9l] . ...
doi:10.1145/143365.143383
dblp:conf/asplos/HollandG92
fatcat:whpwpkmf3bfntmlrzjjfvkjvau
Parity declustering for continuous operation in redundant disk arrays
1992
SIGPLAN notices
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We describe and evaluate a strategy for declustering the parity encoding in a redundant disk array. ...
This declustered parity organization balances cost against data reliability and performance during failure recovery in highly-available parity-based arrays for use in continuous-operation systems. ...
The Declustered Parity Layout Policy Figure 2-1 illustrates the parity and data layout for a left-symmetric RAID 5 redundant disk array [Lee9l] . ...
doi:10.1145/143371.143383
fatcat:urrlktxcjbfojnytr5lgeel4by
Parity Declustering for Continuous Operation in Redundant Disk Arrays
[chapter]
2009
High Performance Mass Storage and Parallel I/O
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We describe and evaluate a strategy for declustering the parity encoding in a redundant disk array. ...
This declustered parity organization balances cost against data reliability and performance during failure recovery in highly-available parity-based arrays for use in continuous-operation systems. ...
The Declustered Parity Layout Policy Figure 2-1 illustrates the parity and data layout for a left-symmetric RAID 5 redundant disk array [Lee9l] . ...
doi:10.1109/9780470544839.ch13
fatcat:yj2eylluibdy5kgwzhmfzavdte
A Fast Approach to Scale Up Disk Arrays with Parity Declustered Data Layout by Minimizing Data Migration
2019
IEEE Access
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However, to perform scaling on such redundant array of inexpensive disks (RAIDs), it is necessary to preserve parity declustered data layout so as to preserve the properties after scaling. ...
so as to preserve parity declustered data layout. ...
Even though CRAID [36] can expand volume for a parity declustered RAID array, it cannot regain parity declustered data layout after the expansion. ...
doi:10.1109/access.2019.2896263
fatcat:7dakm3ndpvgihcg2d3vfcpqo2u
Page 3194 of Mathematical Reviews Vol. , Issue 98E
[page]
1998
Mathematical Reviews
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The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
Summary: “Recently, parity-declustered layouts have been studied as a tool for reducing the time needed to reconstruct a failed disk in a disk array. ...
on data layouts leads to constructions of approximately-balanced layouts that greatly increase the number of feasible layouts for large arrays, and give
68 COMPUTER SCIENCE
3194
a new method for distributing ...
RAID Level 6 and Level 6+ Reliability
2020
International Journal of Applied Sciences and Smart Technologies
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We provide here exact formula for the data-loss probability of a disk array composed of several RAID Level 6 stripes. ...
This two-failure tolerant is not only used in practice but can also provide a reference point for the assessment of other data organizations ...
To evaluate their effectiveness, a disk array consisting of several RAID consists of six data disks, a P-parity disk, and a Q-parity disk. ...
doi:10.24071/ijasst.v2i2.2811
fatcat:g5jf5af7fvb2bh6wzbqnyixbzq
A performance evaluation tool for RAID disk arrays
2004
First International Conference on the Quantitative Evaluation of Systems, 2004. QEST 2004. Proceedings.
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We report on a tool that can be used for the performance evaluation of disk failure tolerant ( DFT) disk arrays. RAID0 is a 0DFT. RAID5 is a 1DFT utilizing a single check disk. ...
The capacity overhead is less important for high capacity modern disks than the disk access overhead to update parities, especially the small write penalty. ...
Conclusions We report on a tool which uses queueing analysis and simulation to investigate the performance of RAID disk arrays. ...
doi:10.1109/qest.2004.1348011
dblp:conf/qest/ThomasianHFL04
fatcat:m5jvadp4rffdxe3yj5vugbo7hy
Deconstructing storage arrays
2004
SIGARCH Computer Architecture News
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Second, we demonstrate how Shear can be used to extract detailed characteristics about the individual disks within an array. ...
of redundancy, and layout scheme. ...
ACKNOWLEDGEMENTS We would like to thank Bradford Beckmann, Nathan Burnett, Vijayan Prabhakaran, Muthian Sivathanu, and the anonymous reviewers for their excellent feedback. ...
doi:10.1145/1037947.1024401
fatcat:nbykww4dtzfafj76c4p233bysm
Deconstructing storage arrays
2004
ACM SIGOPS Operating Systems Review
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Second, we demonstrate how Shear can be used to extract detailed characteristics about the individual disks within an array. ...
of redundancy, and layout scheme. ...
ACKNOWLEDGEMENTS We would like to thank Bradford Beckmann, Nathan Burnett, Vijayan Prabhakaran, Muthian Sivathanu, and the anonymous reviewers for their excellent feedback. ...
doi:10.1145/1037949.1024401
fatcat:5dwc74fdwbazraoybbbqta5xhy
Deconstructing storage arrays
2004
Proceedings of the 11th international conference on Architectural support for programming languages and operating systems - ASPLOS-XI
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Second, we demonstrate how Shear can be used to extract detailed characteristics about the individual disks within an array. ...
of redundancy, and layout scheme. ...
ACKNOWLEDGEMENTS We would like to thank Bradford Beckmann, Nathan Burnett, Vijayan Prabhakaran, Muthian Sivathanu, and the anonymous reviewers for their excellent feedback. ...
doi:10.1145/1024393.1024401
dblp:conf/asplos/DenehyBPAA04
fatcat:wi6nqzfamvhbtm5vne4pw6t3sq
Deconstructing storage arrays
2004
SIGPLAN notices
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The file type is application/pdf.
Second, we demonstrate how Shear can be used to extract detailed characteristics about the individual disks within an array. ...
of redundancy, and layout scheme. ...
ACKNOWLEDGEMENTS We would like to thank Bradford Beckmann, Nathan Burnett, Vijayan Prabhakaran, Muthian Sivathanu, and the anonymous reviewers for their excellent feedback. ...
doi:10.1145/1037187.1024401
fatcat:br7nzcuhevgzpbqmy77lg2p75m
${\rm S}^{2}$-RAID: Parallel RAID Architecture for Fast Data Recovery
2014
IEEE Transactions on Parallel and Distributed Systems
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A prototype S 2 -RAID system has been built and implemented in the Linux operating system for the purpose of evaluating its performance potential. ...
This paper presents a new RAID architecture, S 2 -RAID, allowing the disk array to reconstruct very quickly in case of a disk failure. ...
ACKNOWLEDGMENTS We would like to thank the anonymous reviewers for their valuable insights that have improved the quality of the paper greatly. ...
doi:10.1109/tpds.2013.225
fatcat:sgiiqlwcwjbmjnud77gqjegf7q
OGSSim: Open Generic data Storage systems Simulation tool
2015
Proceedings of the Eighth EAI International Conference on Simulation Tools and Techniques
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Each module of the simulator is executed by a thread, and communicates with the others via ZeroMQ, a message transmission API using sockets for the information transfer. ...
The diversity of the supported devices, regardless to their nature: disks, buses, ..etc and organisation: JBOD, RAID, ..etc makes the simulator open to many technologies. ...
We also target to include the failure mode in our simulator and the data reconstruction even after multiple failures by adding the declustered RAID mechanism [14] with the possibility for the user to ...
doi:10.4108/eai.24-8-2015.2261023
dblp:conf/simutools/GougeaudZLD15
fatcat:ryeubuh3mbe4zn2vn4g34sx524
Online availability upgrades for parity-based RAIDs through supplementary parity augmentations
2011
ACM Transactions on Storage
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by one disk for each stripe to balance the workload and thus maximize the performance of reconstruction during recovery. ...
to a RAID5+0like system without any change to the data layout of the RAID5 system. ...
Schemes
Applicable to
RAID5 level
Applicable to
RAID6 level
Needs data layout
reorganization
Improves the recovery
performance
the extra parity
update policy
Parity
Declustering
Yes ...
doi:10.1145/1970338.1970341
fatcat:4kemju36d5hurlgqa4jyi7ps24
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