As mentioned before, restic is used at CERN at a large scale. I haven’t heard the talk, yet, but you can see restic being mentioned several times on slide 8 of this talk:
It’d be nice to see that on video. Funny, just this afternoon I (probably re)watched this: Video AG - Vorträge des CCCAC: restic – pretty cool development!
Unfortunately we didn’t have the time show it during our presentation, however for next year we plan to have a restic-focused presentation about how is used to backup our data.
Recently, we managed to do a backup of a single directory containing more than 1 petabyte of data, quite challenging!