There is not enough disk space on the available volumes due to disk reserves. Maximum disk space on the most appropriate ...

There is not enough disk space on the available volumes due to disk reserves.
Maximum disk space on the most appropriate volume, accounting for the host resource utilization and reserves (in megabytes): %BinaryDiskSpaceAvailable;
The virtual machine requires (in megabytes): %PlacementRequestValue;
The maximum space at the time of evaluation, after considering the virtual machine requirements (in megabytes): %PlacementCapacityValue;