Converting a Zeroedthick Virtual Disk to an Eagerzeroedthick Disk

Use the vmkfstools command to convert any zeroedthick virtual disk to an eagerzeroedthick disk.

-k|--eagerzero

While performing the conversion, this option preserves any data on the virtual disk.

Follow this example:

vmkfstools --eagerzero /vmfs/volumes/myVMFS/VMName/disk.vmdk