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Improving Hypervisor Based SSD Caching with Logically Partitioned Blocks and Scanning in Cloud Environment

  • Hee Jung Park
  • Kyung Tae Kim
  • Byungjun Lee
  • Rhee Man Kil
  • Hee Yong Youn
Conference paper
Part of the Studies in Computational Intelligence book series (SCI, volume 612)

Abstract

In the era of big data and cloudcomputing the virtual machine (VM) environment is important where multiple VMs of different operating system and application can be simultaneously run on the same host. In the VM environment the conventional hard disk drive (HDD) has limitations such as low random access performance and high power consumption. Solid State Drive (SSD) is an emerging storage technology, playing a critical role in revolutionizing the storage system design. Recently, SSD storage caching is widely studied for VM-based systems. The existing works on cache space allocation identify the space demand of each VM based on hit ratio. They are not effective for the VMs of shared SSD cache due to the filte ring effect of higher-level caches. In this paper we propose a novel hypervisor-based SSD caching scheme, employing a new metric to accurately determine the demand on SSD cache space of each VM. Computer simulation confirms that it substantially improves the accuracy of cache space allocation compared to the existing schemes. It also allows to display comparable hit ratio as the existing schemes with less amount of SSD cache for the VMs.

Keywords

Cache allocation SSD caching Virtual machine Hit ratio Hypervisor 

Notes

Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2012R1A12040257 and 2014R1A1A2060398), the second Brain Korea 21 PLUS project, MSIP(Ministry of Science, ICT & Future Planning), Korea in the ICT R&D Program 2014 (1391105003), and Samsung Electronics (S-2014-0700-000).

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Hee Jung Park
    • 1
  • Kyung Tae Kim
    • 1
  • Byungjun Lee
    • 1
  • Rhee Man Kil
    • 1
  • Hee Yong Youn
    • 1
  1. 1.College of Information and Communication EngineeringSungkyunkwan UniversitySuwonRepublic of Korea

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