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

Shinichi Hayashi; Norihisa Komoda

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Paper

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

Topics: Performance Evaluation and Benchmarking

In Proceedings of the 16th International Conference on Enterprise Information Systems - Volume 3: ICEIS, 144-151, 2014 , Lisbon, Portugal

Authors: Shinichi Hayashi ¹ and Norihisa Komoda ²

Affiliations: ¹ Hitachi, Ltd. and Osaka University, Japan ; ² Hitachi and Ltd., Japan

Keyword(s): Exclusive Data Allocation, Tiered Storage, Tier, Cache, Response Time, SSD.

Related Ontology Subjects/Areas/Topics: Databases and Information Systems Integration ; Enterprise Information Systems ; Performance Evaluation and Benchmarking

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.

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Paper citation in several formats:

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 3: ICEIS; ISBN 978-989-758-027-7; ISSN 2184-4992, SciTePress, pages 144-151. DOI: 10.5220/0004867801440151

@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 3: ICEIS},
year={2014},
pages={144-151},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004867801440151},
isbn={978-989-758-027-7},
issn={2184-4992},
}

TY - CONF

JO - Proceedings of the 16th International Conference on Enterprise Information Systems - Volume 3: ICEIS
TI - Evaluation of Exclusive Data Allocation Between SSD Tier and SSD Cache in Storage Systems
SN - 978-989-758-027-7
IS - 2184-4992
AU - Hayashi, S.
AU - Komoda, N.
PY - 2014
SP - 144
EP - 151
DO - 10.5220/0004867801440151
PB - SciTePress