At CARMA (and OVRO) there is limited bandwith to the outside world, and CARMA data should probably be directly copied via one of the cedarflat machines on /misc/sdp/sciencedata/, or in case of older data, the directory /misc/sdp/archive_sciencedata/ should contain data older than about a month. Eventually those data will also disappear and can then only be retrieved via the Data Archive.
Notice one subtle naming convention: currently the site uses .mir names, where the data archive uses .miriad! The data archive returns gzip compressed tar files, whereas the site only uses miriad data (i.e. directories). The /misc/sdp/archive_sciencedata/ are gzip compressed tar files again, but with the site specific .mir convention.