How to move an ESXi 3.5 VM to different datastore on same host.

Hi All,

What's the best way to move a VM to a new datastore on the same host? I've got a legacy Server 2003 VM which has run out of space, and I need to move to a new datastore (different array) on the same host. After that I'll increase the disk size available to the VM and use gparted or similar to increase the partition under windows I guess.

The host is running ESXi 3.5.0 which doesn't seem to have the ability to move the vmdk.

Thanks in advance!