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Performance Augmentation of a FAT Filesystem by a Hybrid Storage System

Conference paper
Part of the Smart Innovation, Systems and Technologies book series (SIST, volume 28)

Abstract

In this paper, we propose segregation and dispersal of hot-zone & cold-zone of a FAT filesystem over a hybrid-storage system for performance gains. Specifically, we propose hFAT, a high performance FAT32 filesystem design, that stores the most frequently accessed metadata of files on a solid-state storage drive while as actual contents on the magnetic drive. The idea is to eliminate the head positioning latency incurred by FAT filesystem operations while accessing metadata & userdata disk areas. After exercising the hFAT filesystem using Sprite LFS small-file benchmark, we found that hFAT design can reduce the latency incurred by FAT32 filesystem operations by a minimum of 25%, 10% and 90% during writing, reading and deleting a large number of small files respectively, if a solid-state storage device having latency lesser or equal to 10% of that of magnetic disk is used in addition.

Keywords

FAT filesystem hybrid storage performance 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Department of Computer SciencesUniversity of KashmirSrinagarIndia

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