You are considering your data center by using Windows Server 2008 R2 Hyper-V servers. You are performing virtual-to-virtual (V2V) conversions from Microsoft Virtual Server R2 and Windows ESX…

Question

Options

• ASet the placement goal to load balancing.
• BImplement Windows System Resource Monitor (WSRM).
• CSet the placement goal to Resource maximization.
• DImplement Performance and Resource optimization.

• A
  4% (1)
• B
  9% (2)
• C
  83% (19)
• D
  4% (1)

Explanation

When you deploy or migrate a virtual machine to a host, the evaluation and selection of the most suitable host for the virtual machine is known asvirtual machine placement, orplacement. During placement, Virtual Machine Manager (VMM) evaluates the suitability of available hosts and assigns each host a rating of 0stars (not suitable) through 5stars (very suitable), in half-star increments. Each host's rating is based on several factors, including the virtualization software on the host, the hardware and networking configuration of the host and the virtual machine, the virtual machine's resource requirements, and whether the virtual machine is highly available. A new feature in VMM 2008 R2 is the host compatibility check, which VMM performs before migrating a virtual machine that is deployed on a Hyper-V host cluster created in Windows Server 2008 R2. To prevent a migration from failing, the host compatibility check ensures that the destination host's hardware, such as CPU model, is compatible with the source host. VMM uses the Hyper-V compatibility check API in Windows Server2008 R2 and the VMware compatibility check APIs to ensure that hardware requirements are met for each type of virtualization software. This feature is not available for failover clusters created in Windows Server 2008. Using Host Ratings to Select Hosts You can establish customized default criteria for VMM to use when rating hosts during placement. This helps you to place virtual machines on the most suitable host. You can specify the placement goal that VMM should use to calculate hosts ratings. The placement goals are described in the following table: You can also specify the relative importance of each of the following resources that VMM should use when rating hosts: Memory utilization Network utilization For example, if you create a Windows Server2008-based virtual machine for developers and you know that the virtual machine requires significant CPU, however the host has relatively little hard disk or network resources, you might customize the default ratings to increase the priority of free CPU while lowering the priority of the hard disk and network.

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