Christina Herzog

Green IT for Innovation and Innovation for Green IT: The virtuous circle

Green IT has recently appeared as a mandatory approach to take into account energy efficiency in information technology. This article investigates the Green IT area and its opportunities for innovation. This chapter analyses the main motivations for Green IT, and proposes a definition of Green IT including social, environmental and economic concerns. Beyond simply listing areas of possible innovation, this paper studies the virtuous circle that appears in Green IT: while Green IT has its own motivations, the resulting research feeds into other research fields. Innovation in this particular sector paves the way for further innovation by means of original research not foreseen initially.

Actors for Innovation in Green IT

Green IT is a mandatory process required for energy consumption reduction and sustainable development. Many actors are involved in the development and adoption of Green IT, ranging from individual persons to research groups, companies, governments, and countries. This chapter identifies actors for innovation in the field of Green IT, explores, and defines them. Their interactions are detailed and their influence on the Green IT landscape is pointed out. A definition of Green IT is given as a common understanding to form a basis for all further investigations of this sector. Then we detail the different actors of innovation in Green IT and outline their relationships to understand the keys for better development and adoption of Green IT.

Hot-N-Cold model for energy aware cloud databases

A lot of cloud computing and cloud database techniques are adopted in industry and academia to face the explosion of the arrival of the big data era. Meanwhile, energy efficiency and energy saving become a major concern in data centers, which are in charge of large distributed systems and cloud databases. However, the phenomenon of energy wasting is related to resource provisioning. Hot-N-Cold model is introduced in this paper, which uses workload predictions and DVFS(Dynamic Voltage and Frequency Scaling) to cope with the resource provisioning problem within energy aware cloud database systems. In this model, the resource provisioning problem is considered as two bounded problems. A nonlinear programming algorithm and a multi-phase algorithm are proposed to solve them. The experimental results show that one of the proposed algorithms has great scalability which can be applied to a cloud database system deployed on 70 nodes. Using Hot-N-Cold model can save up to 21.5% of the energy of the running time.

A Multi Agent System for Understanding the Impact of Technology Transfer Offices in Green-IT

We present a multi agent system simulating the complex interplay between the actors of innovation involved in the development of technology transfer for Green IT. We focus on the role and the influence of technology transfer offices on the individual objectives of each other actor (researchers, research facilities, companies). We analyse also their impact on several parameters, including sustainability.

Standardization Bodies, Initiatives and Their Relation to Green IT Focused on the Data Centre Side

The aim of this paper is to provide an overview of the main relevant standardization bodies and organizations national, international, industry groups, standards bodies and regulators as well as projects, initiatives and actual standards in the field of Green IT, and more especially in the Data Centre area. The co-operation between these different organisations and their different point of views and working areas are also investigated. A critical analysis concerning the motivations and approaches of academia and industry towards the various standardization bodies and initiatives is given.