Insufficient disk space on datastore when trying to migrate VM to different local storage on ESXi host.

I am trying to move a VM to another local datastore on an ESXi host and i am getting insufficient disk space even though there is enough free space. So i tried to move another VM that used MORE space and it didn't give me the error. I have attached some screen shots. W2k8temp is the orginal one i tried to move and go the error.
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victordrAsked:
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coolsport00Commented:
But what is the size of the actual hard disk of the VM? If it's greater than the allocation size of your new datastore, then yes, you'll get that error.

~coolsport00
coolsport00Commented:
Rt-click on the VM -> Edit Settings, select Hard Disk and provide a screenshot of the "provisioned size"...
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
whatvare your datastores?

you are not migrating a thin disk on nfs to vmfs datastore, and its creating a thick disk?
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victordrAuthor Commented:
provisioned storage or used storage? If it goes off of provisioned storage  then yes it is bigger. I have attached screen shots of the VM's and datastores.
coolsport00Commented:
Provisioned, yes. So, if you created a "thick" disk for your VM and it's say 80GB, and your DS is 65GB, then you'll get the error you're getting...
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Create a thin disk or increase datastore space.
victordrAuthor Commented:
They are all thin.
mlehnertzCommented:
If you've thin provisioned the disk at ~83GB, but are only using ~35GB, the disk requirement on the new datastore will be 83GB when you move it.

You can use the VMWare Standalone Converter to reconfigure the VM with a smaller disk size and then move it to the new physical server.

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