I tested the latest release (2.0.4.5 beta) on a DS211j and a DS218+.
For the DS211j I found that Duplicati didn’t work reliably. Roughly half of the connection attempts with B2 cloud storage failed due to HTTP errors. When a connection did work, starting a backup run already took minutes – that was before the first file started transferring. Lack of space on /tmp further complicated matters. The latter problem could likely have been resolved with some effort. The former couldn’t. I concluded that the DS211j is likely too slow to run Mono/Duplicati.
My attempt with the DS218+ fared much better. Installation was smooth, and I had the first backup running with little effort.
Some comments:
- For both systems, it was necessary to manually install root certificates (instructions)
- I’ve observed the “Missing XSRF Token” bug with both systems (link)
- I haven’t checked yet if the restore bug is present on the DS218+, but can report back on this.