Alain Tchana

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Abstract. Nowadays, virtualization is present in almost all computing infras-tructures. Thanks to VM migration and server consolidation, virtualization helps reducing power consumption in distributed environments. On(More)
OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. a b s t r a c t Virtualized cloud infrastructures are very popular as they allow resource mutualization and therefore cost reduction. For cloud providers, minimizing the number of used resources is one of the main(More)
—In the coming years, cloud environments will increasingly face energy saving issues. While consolidating the virtual machines running in a cloud is a well-accepted solution to reduce the energy consumption, ensuring the scalability of the consolidation service remains a challenging issue. In this paper, we propose an elastic consolidation service that(More)