대규모 데이터센터의 경제성 분석을 위한 총 소유비용 모델에 관한 연구

초록

As the computing environment migrates toward mobile and cloud computing, the demand for data centers is growing very fast. Data centers possess characteristics of construction and IT infrastructure. Huge upfront investment is necessary for constructing a build-ing and purchasing IT systems, while significant additional investment should follow periodically to replace and upgrade the facilities and systems. Therefore, it is very important to perform a careful benefit-cost analysis when planning data centers. Since the benefit is realized over the life span of the datacenter, the cost incurred throughout the lifecycle of the datacenter (i.e. Total Cost of Ownership or TCO) needs to be estimated. Despite high practical needs and importance, however, academic research on the TCO model for data cen-ters is very limited. In this paper, we propose a comprehensive and useful TCO model for data centers. The model does not require many input variables, and it is flexible and detailed enough to analyze the changes in total cost depending on the operational policy and power usage efficiency.

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