I've installed OMV 3 on my D-Link DNS-325 - https://habrahabr.ru/post/329596/ (rus)
But now I have trouble with web-panel. I think it occurs because of CPU overloading, but I don't sure. Sometimes web-panel pulls "communication failure" alerts.
Simple way to reproduce is open 2 or 3 web-panel tabs simultaneously:
Or run rsync and try to open HDD tab: