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Hot and Cold Data Replacement Method for Hybrid Storage System
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- 저자
- 길기정, 송석일, 복경수, 정승국
- 발행일
- 201312
- 출처
- Information : An International Interdisciplinary Journal, v.16 no.12(A), pp.8331-8338
- ISSN
- 1343-4500
- 출판사
- International Information Institute
- 협약과제
- 12VI1500, 에너지 절감 및 입출력 속도 향상 가능한 DRAM-SSD/HDD 하이브리드 스토리지 시스템 및 관리 솔루션 개발, 정승국
- 초록
- In order for the hybrid storage system to yield the best attainable performance, hot data blocks should be placed on a DDR-SSD and cold data blocks should be placed on a HDD according to the temperature of each data block. In this paper, we propose a hot and cold data replacement method that measures the temperature of data on real-time and replaces the data blocks. The proposed hot and cold data replacement method includes the DDR-SSD cache for allocating new blocks and main memory cache which considers the mobility of data to reduce migration costs between HDD and DDR-SSD. Finally, through simulation, we evaluate our hot and cold data management method. © 2013 International Information Institute.
- KSP 제안 키워드
- Data Blocks, Data Management, Hot data, Hybrid storage system, Real-Time, Replacement method, SSD cache, cold data, data replacement, main memory, migration costs