We have started directly tagging files in the Data Store with metadata tags to help users find sample data files directly through iRODS, e.g.:
imeta qu -d domain = viruses
Will return 11,289 files. Currently the files are only tagged with the “domain” of their parent project. While it is unlikely that such an interface will reached the power of our sample metadata search, it could be possible to download data through simple, direct queries, e.g., all bacterial reads.
See also the tutorial on iCommands.