근래 인터넷의 발달로 서버 운용에서 전력 소비가 증가함에 따라 서버 클러스터에 대한 저전력의 전력 관리 기법이 요구되고 있다. 본 논문에서는 서버 클러스터에서 효과적인 저전력 서버 운영을 위한 모델 기반의 자율 동적 전력 관리 기법을 제안한다. 단일 서비스를 제공하는 서버에 대한 전력 소비 모델과 서비스 모델을 유도하고, 요청 부하에 대한 서버들의 전력 소비량 및 응답 시간을 계산한다. 그리고, 이를 이용하여 부하 분배기 상의 클러스터 전체 요청 부하에 따라 서버들의 On/Off 상태를 결정하는 자율 동적 전력 관리 정책을 설계하는 기법을 제안한다. 본 논문에서는 제안한 방법의 유효성과 우수성을 시뮬레이션을 통해 시간 기반 전력 관리 정책과 비교하여 검증하였다.
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