We are seeing that VMwareVAAI XCOPY is not working with ESX 6.0. This used to work fine with ESX 5.5. The storage has not been updated, only the ESX server was updated to 6.0 and XCOPY stopped working. The same operation which works with a ESX 5.5 cluster on the storage node, does not work with a ESX 6.0 cluster on the same storage node. So it does not seem to be a array vendor issue as it clearly works in ESX 5.5 version and not the newer ESX 6.0 version.
Anyone have a clue as to why this could be..
I have made sure of the following
The source and destination volumes were the same blocksize as I was cloning within the same VMFS volume
- The source file was not an RDM
- The disk was a flat disk format
- The VMFS datastore was created using the vSphere Web client