Evaluation of Exclusive Data Allocation Between SSD Tier and SSD Cache in Storage Systems

Shinichi Hayashi, Norihisa Komoda

2014

Abstract

We propose an exclusive data allocation method and evaluate the storage I/O response time with this method between a solid state drive (SSD) for a tiered volume and an SSD for cache in a storage system that uses both an SSD and hard disk drive (HDD). With the proposed method, the SSD cache function with exclusive data allocation caches only data allocated on the HDD tier. This enables more data to be allocated on the SSD, which reduces storage I/O response time. The simulation results show that the proposed method reduces the storage I/O response time in high I/O locality workload or low I/O locality workload with large SSD capacity. It also reduces the storage I/O response time by up to 23% compared to a combination of SSD/HDD volume tiering and SSD cache methods with no exclusive data allocation.

Paper Citation

in Harvard Style

Hayashi S. and Komoda N. (2014). Evaluation of Exclusive Data Allocation Between SSD Tier and SSD Cache in Storage Systems . In Proceedings of the 16th International Conference on Enterprise Information Systems - Volume 1: ICEIS, ISBN 978-989-758-027-7, pages 144-151. DOI: 10.5220/0004867801440151

in Bibtex Style

@conference{iceis14,
author={Shinichi Hayashi and Norihisa Komoda},
title={Evaluation of Exclusive Data Allocation Between SSD Tier and SSD Cache in Storage Systems},
booktitle={Proceedings of the 16th International Conference on Enterprise Information Systems - Volume 1: ICEIS,},
year={2014},
pages={144-151},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004867801440151},
isbn={978-989-758-027-7},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 16th International Conference on Enterprise Information Systems - Volume 1: ICEIS,
TI - Evaluation of Exclusive Data Allocation Between SSD Tier and SSD Cache in Storage Systems
SN - 978-989-758-027-7
AU - Hayashi S.
AU - Komoda N.
PY - 2014
SP - 144
EP - 151
DO - 10.5220/0004867801440151