DCSim: Design Analysis on Virtualization Data Center

Virtualization has become a core technique to support a data center, which usually consists of hardware, virtual machine(VM), and operating system(OS) etc. With virtualization, users can make good use of resources provided in a data center with resource protection and efficient hardware utilization. However, as data amount has increased very rapidly, many issues such as low power and resource sharing have become very critical. To resolved these issues, this paper presents a novel simulation environment based on a tiny OS, Hard Disk Drive (HDD), and Solid State Drive(SSD) to help users and designers understand a data center via simulation and analysis. Compared with the previous work, our tool can simulate and analyze homogeneous and heterogeneous systems with a multi-layer approach. Although each part of a data center has been studied by researchers, the analysis for data centers with multiple layers or heterogeneous devices is still an important issue. If programmers cannot analyze a data center, they are not easy to handle resources efficiently or understand cross-layer influence. They may encounter unpredictable challenges arising from the integration of various components. To address these challenges, programmer and system designer will be need thorough understanding of multi-layer heterogenous system. We propose a new simulation tool called Data Center Simulator(DCSim). We have used small-scale os and storage simulation to achieve multi-layer system simulation to help us to understand multi-layer heterogenous system. Therefore, programmer can simulate and analysis the system that we will analysis the parallel program and different storage deices on DCSim.