Cloning a Virtual Disk

On ESXi hosts in vSphere, programs cannot create managed disk, but they can call vixDiskLib_Clone() to convert hosted disk to managed disk.

Compute Space Needed for Clone
This function computes the space required (in bytes) to clone a virtual disk, after possible format conversion.
Clone a Disk by Copying Data
This function copies data from one virtual disk to another, converting (disk type, size, hardware) as specified.

Parent topic: Virtual Disk API Functions