Could you confirm you have gone over the 3par best practices / setup guide for ESX ?
What OS version is the 7200 running ?
What host personas are you using ?
From the ESX hosts could you run the following : esxcli storage core device vaai status get or esxcfg-scsidevs -l
The only time i have seen it not work is, different block sizes on source and destination VMFS volume, a change to the VMDK layout (thick to thin). I am sure there will be more limitations listed in the HP guide too.
let me know the output and if all the settings have been applied from the documentation.
Rich
