Exploring the performance impact of stripe size on network attached storage systems

  • Authors:
  • Yuhui Deng;Frank Wang

  • Affiliations:
  • Center for Grid Computing, Cambridge-Cranfield High Performance Computing Facility, Cranfield University Campus, Bedfordshire MK430AL, United Kingdom;Center for Grid Computing, Cambridge-Cranfield High Performance Computing Facility, Cranfield University Campus, Bedfordshire MK430AL, United Kingdom

  • Venue:
  • Journal of Systems Architecture: the EUROMICRO Journal
  • Year:
  • 2008

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Abstract

Network attached storage (NAS) integrates redundant array of independent disks (RAID) subsystem that consists of multiple disk drives to aggregate storage capacity, I/O performance and reliability based on data striping and distribution. Traditionally, the stripe size is an important parameter that has a great influence on the RAID subsystem performance, whereas the performance impact has been changed due to the development of disk drive technologies and some I/O optimization methods. Based on disk drive access time, this paper constructs a performance analysis model to exploit the impact of some I/O optimization approaches including sub-commands combination, storage interface augment, and I/O scatter/gather on the stripe size of NAS. The analysis results and experimental validation indicate that due to the evolution of hardware and software, the stripe size has a negligible performance impact on NAS when the disk drives involved are organized in a RAID0 pattern.