• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Parallel and Distributed Systems >Exploiting Workload Characteristics and Service Diversity to Improve the Availability of Cloud Storage Systems
【24h】

Exploiting Workload Characteristics and Service Diversity to Improve the Availability of Cloud Storage Systems

机译：利用工作负载特征和服务多样性来提高云存储系统的可用性

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

With the increasing utilization and popularity of the cloud infrastructure, more and more data are moved to the cloud storage systems. This makes the availability of cloud storage services critically important, particularly given the fact that outages of cloud storage services have indeed happened from time to time. Thus, solely depending on a single cloud storage provider for storage services can risk violating the service-level agreement (SLA) due to the weakening of service availability. This has led to the notion of Cloud-of-Clouds, where data redundancy is introduced to distribute data among multiple independent cloud storage providers, to address the problem. The key in the effectiveness of the Cloud-of-Clouds approaches lies in how the data redundancy is incorporated and distributed among the clouds. However, the existing Cloud-of-Clouds approaches utilize either replication or erasure codes to redundantly distribute data across multiple clouds, thus incurring either high space or high performance overheads. In this paper, we propose a hybrid redundant data distribution approach, called HyRD, to improve the cloud storage availability in Cloud-of-Clouds by exploiting the workload characteristics and the diversity of cloud providers. In HyRD, large files are distributed in multiple cost-efficient cloud storage providers with erasure-coded data redundancy while small files and file system metadata are replicated on multiple high-performance cloud storage providers. The experiments conducted on our lightweight prototype implementation of HyRD show that HyRD improves the cost efficiency by 33.4 and 20.4 percent, and reduces the access latency by 58.7 and 34.8 percent than the DuraCloud and RACS schemes, respectively.
机译：随着云基础架构利用率的提高和普及，越来越多的数据移至云存储系统。这使得云存储服务的可用性至关重要，特别是考虑到确实确实不时发生了云存储服务中断的事实。因此，由于服务可用性的削弱，仅依靠单个云存储提供商来提供存储服务可能会有违反服务级别协议（SLA）的风险。这导致了“云中的云”的概念，其中引入了数据冗余以在多个独立的云存储提供商之间分配数据，以解决该问题。云计算方法有效性的关键在于如何在云之间合并和分配数据冗余。然而，现有的云计算方法利用复制或擦除代码在多个云之间冗余地分布数据，从而导致高空间或高性能开销。在本文中，我们提出了一种混合冗余数据分发方法，称为HyRD，通过利用工作负载特征和云提供商的多样性来提高Cloud-of-Clouds中的云存储可用性。在HyRD中，大文件分布在具有擦除编码的数据冗余的多个具有成本效益的云存储提供商中，而小文件和文件系统元数据则在多个高性能云存储提供商中复制。对我们的HyRD轻型原型实现进行的实验表明，与DuraCloud和RACS方案相比，HyRD的成本效率提高了33.4％和20.4％，访问延迟减少了58.7％和34.8％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号