Copied VM not working

Hi guyz,,

Its kind a creepy.  So following is a scenario

I have 2 LUNs connected to 1 ESXi4 host Lun3 and LUN1

My colleague copied ADC VM form LUN3 to  Lun1 instead of migrating using sVmotion in order to free some space

Then he tried to power on but he couldn’t, then he copied it back to the same LUN3

But he was not able to copy xxxxx-0000001-delta.vmdk file

That VM has 2 vmdk

Secondary vmdk seems OK but primary shows 0 MB

Any help will be appreciated

Tkank you