VMWare convert thick to thin disk

VMware Virtual Machine Hosting

If you have VMware vCenter – Click Migrate

For those of us who do not have VMware vCenter:

1. Shutdown the VM
2. SSH to the ESXi machine and type:

vmkfstools -i /vmfs/volumes/datastore1/NAME-OF-VM/NAME-OF-VM.vmdk /vmfs/volumes/datastore1/NAME-OF-VM/NAME-OF-VM-thin.vmdk -d ‘thin’ -a lsilogic

Once the copy is done, go into the settings of your VM, delete the hard disk, and add a new hard disk pointing to the thin vmdk you created. Boot your vm, if it all works then you can use the datastore browser to delete the thick vmdk and you are done.

VMware Virtual Machine Hosting

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