Expected Annual Fraction of Data Loss as a Metric for Data Storage Reliability

Author(s):  
Ilias Iliadis ◽  
Vinodh Venkatesan
Keyword(s):  
2016 ◽  
Vol 685 ◽  
pp. 805-810 ◽  
Author(s):  
P.A. Rahman ◽  
E.A. Muraveva ◽  
M.I. Sharipov

This paper deals with data storage systems based on fault-tolerant dual-disk RAID-1, which are widely used as high-reliable data storage systems and have acceptable overhead expenses in hardware implementation. Advanced reliability model of dual-disk RAID-1 array based on Markov chains, which takes into consideration finite time of disk replacement after disk failure, different disk failure rate in array’s normal and rebuild states, and probability of read errors during array rebuild procedure, are also overviewed in this paper. Mathematical solution of reliability model, calculation formula for mean time to data loss, estimation of disk and array reliability parameters and MTTDL calculation example are also provided.


2020 ◽  
Vol 1 (2) ◽  
pp. 95-98
Author(s):  
Ulfa Pauziah ◽  
Dewi Mustari ◽  
Triyani Akhirina

The development of technology in modern times today encourages every aspect of work to be done through the computerization, with the aim to facilitate the processing of data. In addition, by the application of technology, the time and place for data storage will be more efficient, resulting in accurate and accurate residents’ data, and can be conveyed properly to those in need. Manual data processing is considered less effective in processing and calculating the large data, and this can result in the data loss. These undesirable mistakes will be very detrimental to the development of residents’ data contained in RT 04, Kalisuren. By the presence of the data collection application for the residents in RT 04, Kalisuren, the data collection process for both births and deaths that occurred in RT 04 Kalisuren can be carried out properly. Abstrak Teknologi yang semakin berkembang mendorong setiap aspek untuk merubah pekerjaan yang tadinya dikerjakan secara manual menjadi komputerisasi. Dengan tujuan mepermudah dalam proses pengelohan data. Selain itu dengan adanya aplikasi dapat mengefisienkan waktu dan tempat penyimpanan data. Oleh karena itu untuk menghasilkan data warga yang tepat dan akurat, agar dapat disampaikan dengan baik kepada yang membutuhkan. Pengolahan data secara manual bukanlah suatu hal yang salah, namun cara tersebut kurang efektif untuk melakukan pengolahan dan perhitungan data yang besar, dan hal ini dapat mengakibatkan terjadinya kehilangan data. Kesalahan-kesalahan yang tidak diinginkan itu akan sangat merugikan untuk perkembangan pedataan warga yang terdapat pada RT 04 Kalisuren. Dengan adanya aplikasi pendataan warga RT 04 kalisuren dapat membantu RT dalam proses pendataan baik kelahiran ataupun kematian yng terjadi di RT 04 Kalisuren.


Author(s):  
Pooya Hejazi ◽  
Gianluigi Ferrari

Load balancing, energy efficiency and fault tolerance are among the most important data dissemination issues in Wireless Sensor Networks (WSNs). In order to successfully cope with the mentioned issues, two main approaches (namely, Data-centric Storage and Distributed Data Storage) have been proposed in the literature. Both approaches suffer from data loss due to memory and/or energy depletion in the storage nodes. Even though several techniques have been proposed so far to overcome the mentioned problems, the proposed solutions typically focus on one issue at a time. In this paper, we integrate the Data-centric Storage (DCS) features into Distributed Data Storage (DDS) mechanisms and present a novel approach, denoted as Collaborative Memory and Energy Management (CoMEM), to overcome both problems and bring memory and energy efficiency to the data loss mechanism of WSNs. We also propose analytical and simulation frameworks for performance evaluation. Our results show that the proposed method outperforms existing approaches in various WSN scenarios.


2020 ◽  
Vol 16 (6) ◽  
pp. 155014772092982
Author(s):  
Pooya Hejazi ◽  
Gianluigi Ferrari

Internet of Things integrates various technologies, including wireless sensor networks, edge computing, and cloud computing, to support a wide range of applications such as environmental monitoring and disaster surveillance. In these types of applications, IoT devices operate using limited resources in terms of battery, communication bandwidth, processing, and memory capacities. In this context, load balancing, fault tolerance, and energy and memory efficiency are among the most important issues related to data dissemination in IoT networks. In order to successfully cope with the abovementioned issues, two main approaches—data-centric storage and distributed data storage—have been proposed in the literature. Both approaches suffer from data loss due to memory and/or energy depletion in the storage nodes. Even though several techniques have been proposed so far to overcome the abovementioned problems, the proposed solutions typically focus on one issue at a time. In this article, we propose a cross-layer optimization approach to increase memory and energy efficiency as well as support load balancing. The optimization problem is a mixed-integer nonlinear programming problem, and we solve it using a genetic algorithm. Moreover, we integrate the data-centric storage features into distributed data storage mechanisms and present a novel heuristic approach, denoted as Collaborative Memory and Energy Management, to solve the underlying optimization problem. We also propose analytical and simulation frameworks for performance evaluation. Our results show that the proposed method outperforms the existing approaches in various IoT scenarios.


2014 ◽  
Vol 635-637 ◽  
pp. 860-864
Author(s):  
Feng Qi Hao ◽  
Xiao Shi Zheng ◽  
Guang He Cheng ◽  
Ling Yan Han

A data communication method applicable to building detection industry based on the wireless sensor network (WSN) is designed and implemented in this paper, in which the cause of data loss is analyzed in accordance with the characteristics of wireless sensor network and that of building detection industry. Besides, relevant data storage protocol, staggered transmission protocol, and real-time data replenish protocol are formulated to solve the problem above and improve the reliability and integrity of data.


AITI ◽  
2021 ◽  
Vol 18 (1) ◽  
pp. 34-53
Author(s):  
Bryan Adha Elang Praditya ◽  
Yessica Nataliani ◽  
Penidas Fiodinggo Tanaem

Cooperation as one of the driving wheels of the economy also require technology in the implementation of their operations. The application of the information system to the cooperation will affect the cooperative's performance. The Tani Makmur Cooperation in Klaten is a cooperative that helps farmers in managing rice fields, but does not yet have a web-based system that can integrate the required information. In this study, a web-based information system was designed that can be used as data storage, using a waterfall model. Data were collected by observation, interviews, and SWOT analysis. The resulting information system consists of the menu Master Data, Transactions, Reports, Settings, Graphics, Backups, and Help. Cooperation members can carry out storage, borrowing and installment transactions through the Transaction menu. The cooperation admin can view all transactions through the Reports menu. The resulting web-based information system can be used to store cooperation data, thereby expediting and accelerating the transaction process for Koperasi Tani Makmur customers and also reducing the risk of data loss..


Repositor ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. 165
Author(s):  
Miftakhudin Kusuma Wijaya ◽  
Zamah Sari ◽  
Mahar Faiqurahman

ABSTRAKCloud storage merupakan salah satu bentuk dari cloud computing yang terpusat pada media penyimpanan data. Dalam cloud storage ada kemungkinan yang di alami seperti kehilangan data dengan sekala kecil maupun besar, ataupun tidak dapat di akses sama sekali. Kesalahan yang terjadi akibat bencana alam, kesalahan manusia, ataupun alat yang cukup usang. Dari permasalahan tersebut di lakukan backup dan sinkronisasi data untuk menanggulangi permasalahan yang ada. Replikasi adalah proses yang di gunakan untuk menyalin atau mendistribusikan data dari penyedia layanan ke perangkat backup. Replikasi yang di gunakan ada dua yaitu replikasi database MySql dan replikasi data Rsync, dan untuk menjaga agar cloud storage tetap menyediakan sumber daya untuk pengguna dengan menambahkan metode failover. Failover adalah peralihan dari sebuah perangkat penyedia layanan ke perangkat backup ketika mengalami permasalahan yang tidak di inginkan. Pada penelitian ini akan menjelaskan bagaimana cara membangun dan mengimplementasi infrastruktur cloud storage dengan replikasi untuk backup juga sinkronisasi data dan failover untuk memberikan ketersediaan sumber daya layanan untuk pengguna secara realtime.ABSTRACTCloud storage is one form of cloud computing but is centered on data storage media. In cloud storage there is the possibility of data loss with small or large scale or can not be accessed at all. It can happen from natural disasters, human error, or device oldness. From these problems we can do data backup and data synchronization to overcome these problems. Replication is a process that used to copy or distribute data from service providers to backup devices. This replication using two ways, there is replication database using MySql and data replication using Rsync. To keep cloud storage provide resource for user by adding failover. This failover is a transition from a service provider device when having problems to backup device. In this study will explain how to build and implementation cloud storage infrastructure with replication for backup as well as data synchronization and failover to provide real-time availability of service resources for users.


Author(s):  
Nhan Nguyen ◽  
Mohammad Maifi Hasan Khan ◽  
Yusuf Albayram ◽  
Kewen Wang ◽  
Swapna Gokhale

Author(s):  
Arnold Mashud Abukari ◽  
Edem Kwedzo Bankas ◽  
Mohammed Muniru Iddrisu

In this research paper, a Redundant Residue Number System (n,k) code is introduced to enhance Cloud ERP Data storage. The research findings have been able to demonstrate the application  of Redundant Residue Number System (RRNS) in the concept of Cloud ERP Data storage. The scheme contributed in addressing data loss challenges during data transmission. The proposed scheme also addressed and improved the probability of failure to access data compared to other existing systems. The proposed scheme adopted the concept of Homomorphic encryption and secret sharing whiles applying Redundant Residue Number System to detect and correct errors.The moduli set used is {2m, 2m + 1, 2m+1 - 1, 2m+1 + 1, 2m+1 + k, 22m - k, 22m + 1} where k is the number of the information moduli set used. The information moduli set is {2m, 2m + 1, 2m+1 - 1} and the redundant moduli is {2m+1 + 1, 2m+1 + k, 22m - k, 22m + 1}. The proposed scheme per the simulation results using python reveals that it performs far better in terms of data loss and failure to access data related concerns. The proposed scheme performed better between 41.2% for data loss to about 99% for data access based on the combination of (2, 4) and (2, 5) data shares respectively in a (k, n) settings.


2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Hertog Nugroho ◽  
Ferry Satria ◽  
Griffani Megiyanto ◽  
Rifa Hanifatunnisa ◽  
Maya Rahayu ◽  
...  

Posyandu activities, which include measuring height and weight, have become a routine for monitoring the growth and development of toddlers. Height and weight are important parameters in toddler development related to the prevention of malnutrition that can lead to stunting and other possible disorders.In general, Posyandu activities, in Indonesia, especially posyandu RW 14 Padasuka, Cimahi Tengah sub-district, are still carried out conventionally using cards to record data. There are many problems with data loss among parents due to inadequate documentation and a lot of data storage at the Posyandu which makes recorded data difficult to find when the data is needed. Measurement of height and weight that still uses conventional scales operated by Posyandu officers also makes the measurement results for each child can be different.Through Community Service program, we proposed to develop and implement a weight and height measurement device based on Arduino and a website. Data from these two parameters can be displayed on a web page that can be accessed by parents of Posyandu participants. The development of the tool has been successfully realized and the test shows an error of 0.19% and 0.88% compared to the measurement of manual tools (rulers and scales).Training with Posyandu Padasuka community partners, Cimahi Tengah has been carried out on September 19, 2020 and was attended by several Posyandu volunteers and local residents. The training went well and the equipment was handed over so that it could be used properly.


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