

It can take an existing VMDK and pick it up and place it on a new vSphere virtual machine (VM) with new drive geometry (smaller size). This is where VMware Converter can help out. There is no dynamic shrink of a VMDK or thin-provision reclaim of VMDKs (though some storage systems will provide that with drivers or physical-mode RDMs). You will quickly see, however that the ability to manage the VMDK once it is made is only upward. But the ability to expand the high boundary of a VMDK is easily done through the vSphere Client. The task of making a VMDK bigger is very easy the dynamic growth of a thin-provisioned disk or the hot-add of new disks are common practice for vSphere administrators. I disagree! There are plenty of trick plays for today’s IT pro to use VMware Converter, and in this piece I’ll explain how to shrink a VMDK. VMware Converter may at first seem like a bygone tool for our virtualization practice. Rickatron shows how to do this task using VMware Converter in this post. It is easy to make a VMDK bigger, but not so much to shrink it.

How to shrink a VMDK using VMware Converter
