Unable to create a symclone pair

I am unable to create a symclone pair because of the following error "The device name specified could not be found"

Source device is a TDEV and target device is a TDEV+BCV.

Both the devices are created in the same array. Source device is mapped to a prod server and Target device is mapped to a backup server.

Pairfile.txt has both the devices.

SRC TRGT

1D9C    1D9F

I am trying to execute the following command

symclone -sid **** -f pairfile.txt create -precopy -differential

Can some one help me on what's going wrong here?

Message was edited by: erin1982$