There should not be anything different with Toad for Data Point connecting to Oracle on this type of storage device. The error you are giving is not an Oracle error so I would assume the client configuration needs to be reviewed. Are you using an OCI client? If so what is the bitness of the client and what is the bitness of Toad Data Point? Or are you using direct connect or ODBC?
If you open a support case they are very knowledgeable in this area. This might be faster.