대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2000년도 하계종합학술대회 논문집(3)
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- Pages.47-50
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- 2000
RAID 5의 성능향상을 위한 쓰기 캐쉬의 동적 적응 반출기법
New Dynamic Adaptive Threshold Destage Algorithms for Cached RAID 5
- Yie, Hyeok (School of Electronic Engineering Inha University) ;
- Choi, Sang-Bang (School of Electronic Engineering Inha University)
- 발행 : 2000.06.01
초록
In this paper, we propose a new destage algorithms, called the Dynamic Adaptive Threshold which determines turn-on and turn-off thresholds dynamically depending on the current write cache occupancy level and the differential rate of the host write requests. For performance evaluation, the proposed algorithm is compared with the wellknown High-Low Water Mark (HLWM) algorithm. Performance tests are fulfilled with our cached RAID 5 simulator. The simulation results show that the proposed algorithm outperforms the HLWM algorithm in terms of response time of host reads and write cache hit ratio under various workloads.
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