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Sustainability 2014, 6(9), 6351-6361; doi:10.3390/su6096351

A Light-Weight Metering File System for Sustainable Real-Time Meter Data Management

1
Department of Computer Science & Engineering, Gangneung-Wonju National University, Gangwon-do 220-711, Korea
2
Center Leotek Co., Ltd, Incheon 403-911, Korea
3
Department of Embedded Systems Engineering, Incheon National University, Incheon 402-772, Korea
*
Author to whom correspondence should be addressed.
Received: 24 June 2014 / Revised: 15 August 2014 / Accepted: 5 September 2014 / Published: 15 September 2014
(This article belongs to the Special Issue Ubiquitous Green IT System for Sustainable Computing)
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Abstract

A real-time smart metering system has strict requirements, since every piece of data gathered from various meters every hour is of importance, and each component consisting of metering infrastructure should be sustainable. Therefore, it is necessary to efficiently manage the meter data set in smart metering networks as well as in a server. Therefore, we propose a dedicated file system, a LIght-weight Metering File System (LIMFS), which is capable of not only efficiently storing and searching meter data but also performing distributed fault-tolerant meter data management for real-time smart meter devices. The proposed LIMFS exploits accumulated data sliding storage (ADSS) for lost data recovery and latest-first error-ignorant data management (LEDM) to reduce memory wastage, coping with dynamic report interval. Experimental results demonstrate that LIMFS has as a small enough overhead to be considered negligible, and provides flexible memory capacity according to dynamic report interval, in spite of lost data recovery functionality. View Full-Text
Keywords: file system; smart metering; real-time file system; smart metering; real-time
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Yi, G.; Choi, S.-J.; Hwang, K.-I. A Light-Weight Metering File System for Sustainable Real-Time Meter Data Management. Sustainability 2014, 6, 6351-6361.

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