I have a virtual machine called VM-A with two VMDK's on volume VOL-A. Call these VMDK-1 (system) and VMDK-2 (data). I want to clone VMDK-2 and attach that clone to VM-A as a new disk, but I'm getting an error. Here are my steps:

1. I use the following command to clone : clone start /vol/VOL-A/VMDK-2 /vol/VOL-A/VMDK-3
2. Run clone status which shows successful and I can see the new file in the volume
3. In vCenter I edit the settings of VM-A and try to add VMDK-3, but get the following error: Failed to add disk scsi0:4, Failed to power on scsi0:4

I've tried adding this cloned disk to other VMs and get the same error. What could be the issue? My specs are below.

NetApp FAS 2040 Data ONTAP 8.0.1 vSphere ESXi 4.1 vCenter Server 4.1

Thanks,

Daniel