IEICE TRANSACTIONS on Fundamentals
Parity Placement Schemes to Facilitate Recovery from Triple Column Disk Failure in Disk Array Systems
Summary :
This paper presents two improved triple parity placement schemes, the HDD1 (Horizontal and Dual Diagonal) scheme and the HDD2 scheme, to enhance the reliability of a disk array system. Both the schemes can tolerate up to three column disk failures by using three types of parity information (horizontal, diagonal, and anti-diagonal parities) in a disk array. HDD1 scheme can decrease the frequency of bottlenecks because its horizontal and anti-diagonal parities are uniformly distributed over a disk array, with its diagonal parities placed in dedicated column disks. HDD2 scheme possesses one more column disks than HDD1 to store the horizontal parities and an additional diagonal parity; its anti-diagonal and diagonal parities are placed in the same way as in HDD1 scheme, only with a minor difference. The encoding and decoding algorithms of the two schemes are rather simple and straightforward, some steps of its procedure can even be executed in parallel, which makes the disk failure recovery faster.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E89-A No.2 pp.583-591
- Publication Date
- 2006/02/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1093/ietfec/e89-a.2.583
- Type of Manuscript
- PAPER
- Category
- Coding Theory
Authors
Keyword
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Chih-Shing TAU, Tzone-I WANG, "Parity Placement Schemes to Facilitate Recovery from Triple Column Disk Failure in Disk Array Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E89-A, no. 2, pp. 583-591, February 2006, doi: 10.1093/ietfec/e89-a.2.583.
Abstract: This paper presents two improved triple parity placement schemes, the HDD1 (Horizontal and Dual Diagonal) scheme and the HDD2 scheme, to enhance the reliability of a disk array system. Both the schemes can tolerate up to three column disk failures by using three types of parity information (horizontal, diagonal, and anti-diagonal parities) in a disk array. HDD1 scheme can decrease the frequency of bottlenecks because its horizontal and anti-diagonal parities are uniformly distributed over a disk array, with its diagonal parities placed in dedicated column disks. HDD2 scheme possesses one more column disks than HDD1 to store the horizontal parities and an additional diagonal parity; its anti-diagonal and diagonal parities are placed in the same way as in HDD1 scheme, only with a minor difference. The encoding and decoding algorithms of the two schemes are rather simple and straightforward, some steps of its procedure can even be executed in parallel, which makes the disk failure recovery faster.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e89-a.2.583/_p
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@ARTICLE{e89-a_2_583,
author={Chih-Shing TAU, Tzone-I WANG, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Parity Placement Schemes to Facilitate Recovery from Triple Column Disk Failure in Disk Array Systems},
year={2006},
volume={E89-A},
number={2},
pages={583-591},
abstract={This paper presents two improved triple parity placement schemes, the HDD1 (Horizontal and Dual Diagonal) scheme and the HDD2 scheme, to enhance the reliability of a disk array system. Both the schemes can tolerate up to three column disk failures by using three types of parity information (horizontal, diagonal, and anti-diagonal parities) in a disk array. HDD1 scheme can decrease the frequency of bottlenecks because its horizontal and anti-diagonal parities are uniformly distributed over a disk array, with its diagonal parities placed in dedicated column disks. HDD2 scheme possesses one more column disks than HDD1 to store the horizontal parities and an additional diagonal parity; its anti-diagonal and diagonal parities are placed in the same way as in HDD1 scheme, only with a minor difference. The encoding and decoding algorithms of the two schemes are rather simple and straightforward, some steps of its procedure can even be executed in parallel, which makes the disk failure recovery faster.},
keywords={},
doi={10.1093/ietfec/e89-a.2.583},
ISSN={1745-1337},
month={February},}
Copy
TY - JOUR
TI - Parity Placement Schemes to Facilitate Recovery from Triple Column Disk Failure in Disk Array Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 583
EP - 591
AU - Chih-Shing TAU
AU - Tzone-I WANG
PY - 2006
DO - 10.1093/ietfec/e89-a.2.583
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E89-A
IS - 2
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - February 2006
AB - This paper presents two improved triple parity placement schemes, the HDD1 (Horizontal and Dual Diagonal) scheme and the HDD2 scheme, to enhance the reliability of a disk array system. Both the schemes can tolerate up to three column disk failures by using three types of parity information (horizontal, diagonal, and anti-diagonal parities) in a disk array. HDD1 scheme can decrease the frequency of bottlenecks because its horizontal and anti-diagonal parities are uniformly distributed over a disk array, with its diagonal parities placed in dedicated column disks. HDD2 scheme possesses one more column disks than HDD1 to store the horizontal parities and an additional diagonal parity; its anti-diagonal and diagonal parities are placed in the same way as in HDD1 scheme, only with a minor difference. The encoding and decoding algorithms of the two schemes are rather simple and straightforward, some steps of its procedure can even be executed in parallel, which makes the disk failure recovery faster.
ER -
English
