Cyber Centre data centre virtualization report : best practices for data centre virtualization. : D97-3/70-010-2020E-PDF

"To improve efficiency and streamline operations, many organizations are virtualizing their data centres. However, some are doing so without a proper understanding of the security implications of their decisions on the overall security posture of the data centre. By increasing their consolidation ratios (i.e. the number of virtual machines that can operate on each physical host machine), many organizations may unintentionally compromise their network security architecture. Moreover, any attempt to replace many of the physical isolation mechanisms with logical equivalents may introduce unacceptable risk into their network architecture. … A virtualized data centre (VDC) must address the threats, inherent vulnerabilities, and characteristic risks to data centres, as well as those specific to complex virtualized environments. Fortunately, VDCs can be made secure by using several safeguards and best practices. These safeguards and best practices involve addressing each layer of the virtual environment as well as addressing interactions between the various layers. This report provides an overview of a VDC, presents the inherent vulnerabilities in a VDC, and provides recommendations on how to design a secure VDC"--Overview, page 3.

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