if ( null != device && 0 < device.length )
EC2request.setDevice( device[0] );
else { response.sendError(530, "Missing Device parameter" ); return; }
// -> execute the request
AttachVolumeResponse EC2response = EC2SoapServiceImpl.toAttachVolumeResponse( ServiceProvider.getInstance().getEC2Engine().attachVolume( EC2request ));
serializeResponse(response, EC2response);
}