Please follow the procedure bellow....
Ensure that the target LUN has been presented to the DR host. Perform the following steps:
1. Before you install SRM, test the Replica LUN on the DR side.
2.'Enable Image Access' on the CG and make sure your ESX host can see the target LUN.
If it cannot see the LUN in question, perform the following corrective actions:
1. Put the LUN into the Navisphere storage group for the DR host.
2. Put the LUN into the Navisphere storage group for the RPAs.
3. Rescan the ESX HBAs (and VMFS for non-raw devices).
Cheers, Yours Udin 