Probabilistic Consolidation of Virtual Machines in Self-Organizing Cloud Data Centers

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Probabilistic Consolidation of Virtual Machines in Self-Organizing Cloud Data Centers

Carlo Mastroianni - Nama Orang; Michela Meo - Nama Orang; Giuseppe Papuzzo - Nama Orang;

Power efficiency is one of the main issues that will drive the design of data centers, especially of those devoted to provide Cloud computing services. In virtualized data centers, consolidation of Virtual Machines (VMs) on the minimum number of physical servers has been recognized as a very efficient approach, as this allows unloaded servers to be switched off or used to accommodate more load, which is clearly a cheaper alternative to buy more resources. The consolidation problem must be solved on multiple
dimensions, since in modern data centers CPU is not the only critical resource: depending on the characteristics of the workload other resources, for example, RAM and bandwidth, can become the bottleneck. The problem is so complex that centralized and deterministic solutions are practically useless in large data centers with hundreds or thousands of servers. This paper presents ecoCloud, a selforganizing and adaptive approach for the consolidation of VMs on two resources, namely CPU and RAM. Decisions on the assignment and migration of VMs are driven by probabilistic processes and are based exclusively on local information, which makes the approach very simple to implement. Both a fluid-like mathematical model and experiments on a real data center show that the approach rapidly consolidates the workload, and CPU-bound and RAM-bound VMs are balanced, so that both resources are exploited efficiently.
Index Terms—Cloud computing, VM consolidation, data center, energy saving

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Judul Seri: IEEE TRANSACTIONS ON CLOUD COMPUTING
No. Panggil: -
Penerbit: New York : IEEE., 2013
Deskripsi Fisik: IEEE TRANSACTIONS ON CLOUD COMPUTING, VOL. 1, NO. 2, JULY-DECEMBER 2013
Bahasa: English
ISBN/ISSN: 2168-7161
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: VOL. 1, NO. 2, JULY-DECEMBER 2013
Subjek: TEKNIK
Info Detail Spesifik: -
Pernyataan Tanggungjawab: Yuli/Agus

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