Design and Implementation of cache protecting from power failure in Disk Array

DOI

10.2991/icaicte.2013.104How to use a DOI?

Keywords

disk array; cache; Uninterruptible Power Supply; data redirection

Abstract

In high-end disk arrays, the ups supplied the power to controllers, however, not to the JBOD. In this paper, a solution to cache protecting was designed and implemented by the method of software. In this solution, the controllers redirected the dirty page of the cache to the reserved partition of the system disk as soon as the commercial power failure was detected. The data protected in the system disk partition was recovered to the JBOD when the commercial power became normal. So the cache data was not lost after power failure. It was proved that the data in the cache can be exactly recovered when the commercial power failure happened to the storage system.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - WANG Endong
AU  - HU Leijun
AU  - LV Shuo
AU  - CHENG Jichen
AU  - WEN Zhongling
AU  - ZHANG Feng
PY  - 2013/08
DA  - 2013/08
TI  - Design and Implementation of cache protecting from power failure in Disk Array
BT  - Proceedings of the 2013 International Conference on Advanced ICT and Education
PB  - Atlantis Press
SP  - 509
EP  - 513
SN  - 1951-6851
UR  - https://doi.org/10.2991/icaicte.2013.104
DO  - 10.2991/icaicte.2013.104
ID  - Endong2013/08
ER  -