scholarly journals Avaliação dos Serviços de Armazenamento da Amazon Web Services para Gravação e Recuperação de Checkpoints

2020 ◽  
Author(s):  
Luan Teylo ◽  
Rafaela Brum ◽  
Luciana Arantes ◽  
Pierre Sens ◽  
Lúcia Drummond
Keyword(s):  
Web Services ◽  
File System ◽  
Storage Service ◽  
Amazon Web Services

Os provedores de nuvem oferecem vários serviços para processamento e armazenamento de dados. Alguns desses recursos são propensos a falhas ou revogações. Neste caso, a adoção de técnicas de tolerância a falhas é essencial para minimizar o impacto e o custo que estas falhas podem exercer na execução das aplicações e no orçamento dos usuários. Uma das soluções amplamente adotadas são as técnicas de checkpoint and recovery (CR), que gravam o estado atual da aplicação para que, caso ocorra falhas, esta seja reiniciada a partir do último estado gravado. Assim, essas abordagens exigem um local de armazenamento seguro e disponível ao longo de toda a execução. Felizmente, os serviços de nuvens também podem ser utilizados para este fim, uma vez que diferentes opções de armazenamento também são oferecidos. Neste trabalho, queremos avaliar três desses serviços: o Amazon Simple Storage Service (S3), o Amazon Elastic Block Store (EBS) e o Amazon Elastic File System (EFS). O objetivo é caracterizar e avaliar o desempenho desses serviços em relação a gravação e recuperação de checkpoints no contexto de falhas induzidas pela revogação de máquinas virtuais.

scholarly journals Detailed Study of Cloud Storage Services on Aws Cloud (Amazon Web Services)

2021 ◽  
pp. 291-293
Author(s):  
Er. Krishan Kumar ◽  
Shipra
Keyword(s):  
Web Services ◽  
Cloud Storage ◽  
File System ◽  
Cloud Provider ◽  
Standard Data ◽  
File Storage ◽  
Multiple Regions ◽  
Amazon Web Services ◽  
End To End ◽  
Cloud Storage Services

This research revolves around understanding the Cloud Storage Services offered by world's most famous Cloud Provider Amazon Web Services (AWS). We will be covering major Cloud Storage Services like EBS, S3 and EFS. But first let’s understand more about AWS. We should use these end-of-life services as a per-project and keep in mind the key benefits of these end-to-end services. Amazon EBS brings the highest end-to-end prices available with block for level of Amazon Elastic Compute Cloud (EC2) instances. Saves data to file system stored after EC2 status closure. Amazon EFS provides portable file storage, also designed for EC2. It can be used as a standard data source for any application or load that works in most cases. Using the EFS file system, you can configure file system installation settings. The main difference between EBS and EFS is that EBS is only accessible from a single EC2 state in your specific AWS region, while EFS allows you to mount a file system in multiple regions and scenarios.

Parallelizing Web Service Upload \ Download files

2018 ◽  
Vol 8 (3) ◽  
pp. 15
Author(s):  
Mustapha Mohammed Baua'a
Keyword(s):  
Web Services ◽  
Response Time ◽  
Web Service ◽  
File System ◽  
Programming Environment

The I\O file system Read\Write operations are considered the most significant characteristics. Where, many researchers focus on their works on how to decrease the response time of I\O file system read\write operations. However, most articles concentrate on how to read\write content of the file in parallelism manner. Here in this paper, the author considers the parallelizing Read\Write whole file bytes not only its contents. A case study has been applied in order to make the idea more clear. It talks about two techniques of uploading\downloading files via Web Service. The first one is a traditional way where the files uploaded and downloaded serially. While the second one is uploaded\ downloaded files using Java thread in order to simulate parallelism technique. Java Netbeans 8.0.2 have been used as a programming environment to implement the Download\Upload files through Web Services. Validation results are also presented via using Mat-lab platform as benchmarks. The visualized figures of validation results are clearly clarifying that the second technique shows better response time in comparison to the traditional way.

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