...
Based on the tests below, we believe arbitrarily-large files can be ingested and downloaded via the REST API (tested up to 1TB). The only apparent limitations are disk space available to store the files, and a sufficiently large Java heap size.
Note: To enable fast access to large files, it is necessary to set "contentBasedSha1" : "false". Otherwise the repository will run a SHA1 on the content for identification that could take on the order or hours when reaching into the range of > 50Gb. For more on this benchmarking see: https://wiki.duraspace.org/display/FF/Design+-+Large+Files.
REST API Upload/Download Roundtrip
...