Hello,
two days ago I decided to go the OMV 3 route. I installed everything on my main server (see sig.) made every possible update (v3.0.30) and also updated to the 4.6 backport kernel.
I made everything like I did within OMV2 (Snapraid, mergefs with 3 hdd drives, created two users, created shared folders, gave the shared folders read/write permissions to the users, installed smb and added the shared folders to it).
With my iMac (El Capitan 10.11.5 with all the latest updates) I could connect to my OMV, within Finder (this is like the explorer within Windows) the shared folders showed up, but when I tried to open them, Finder crashed and showed an error window with the message that I don't have the permissions to open the shared folder.
The same problem I had also with my MacbookAir with Mavericks installed.
First I thought the problem came from the migration of the existing shares from the OMV2 installation. So I deleted everything (and formatted all the drives) and installed OMV3 new. I did everything the same which I did with OMV2 and my first OMV3 installation. Even here Finder crashed. I tried both users and with both Finder crashed. So I gave one user superuser-privileges but this didn't help.
I was very upset about this (because it's my main machine and I needed the files) so I installed OMV2 from scratch again (like I did within OMV3) and voila smb-shares works like before installation of OMV3.
Now my question is, if someone faces the same issue or knows how to solve this matter. I've searched the www and found somewhere a small posting, according to the new Debian 8, that this guy had problems with connecting his OSX computer to the smb shares from Debian 8 (he also couldn't connect to them). But there was no answer to his posting.
Now I want to know if others with their OS X have problems to connect to the smb-shares of OMV3 (with the latest kernel installed - I didn't test with the "original kernel").
Thanks in advance