When you try to perform a virtual to virtual (V2V) conversion to a cluster shared volume in Microsoft System Center 2012 Virtual Machine Manager (VMM 2012), the cluster that you selected may have a placement rating of zero stars (unacceptable). In this situation, the Rating Explanation details display the following:

There is not enough disk space on the available volumes due to disk reserves. Maximum disk space on the most appropriate volume, account for the host resource utilization and reserves (in megabytes): <value1>
The virtual machine requires (in megabytes): <value2>
The maximum space at the time of evaluation, after considering the virtual machine requirements (in megabytes): <value1>

For more details and a resolution please see the following:

KB2960125 - "Not enough disk space" error when you run a V2V conversion to a CSV in Virtual Machine Manager (http://support.microsoft.com/kb/2960125)

J.C. Hornbeck | Solution Asset PM | Microsoft GBS Management and Security Division

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