Just confirming that Drobo and Drobo Dashboard works with macOS Tahoe 26.0 
Wow, living on still. Long live Drobo for very unimportant uses 
hi after many years I updated my Mac mini in Tahoe and I canât get Drobo to work. I followed the steps that user timmo outlined. in file access I canât find DDservice64d. I allowed full access to the Drobo app but thatâs it. It keeps saying I need to grant full accessâŚI canât find where DDservice64d isâŚ
The above steps worked for me PRIOR to me upgrading to Tahoe, and it continues to work under Tahoe (without having to do any additional changes after the OS upgrade). I also cannot see âDDservice64dâ now within settings for Tahoe (not sure if Tahoe hid it?). I donât have another Mac to help troubleshoot (and donât want to mess with my current settings).
If you havenât tried this already, suggestions: 1) Shut down Mac, unplug Drobo from Mac, and then follow the above steps exactly to see if it works. 2) If no luck, maybe do the same as #1 but also uninstall the Drobo app (reboot/shutdown dance) and then re-install the Drobo app and follow above steps again to see if you can get it to work (might be best to keep Drobo unplugged from Mac). Just make sure you have a Drobo app to install (I believe others have a version here you can download if you donât have it handy).
One other thing to keep in mind is that you can try both connection methods for your Drobo (Thunderbolt vs. USB). I needed to switch to USB in order to get it âconnectedâ to the Mac.
Good luck! 
Thanks for the help Timmo, so quick update. after doing all steps many times, I did manage to find DDservice64d (in the activity monitor) drag n dropped it in the full disk access in privacy so now I resolved the issue of file access. ButâŚ
I now get an Drobo drive icon, generic orange icon not the usual black one, and a message pops up
âmacOS canât repair the disk Drobo. You can still open or copy files on the disk, but canât save changes. Back up the disk and reformat it as soon as you canâ
All files are there, accessible but canât write, and the Drobo dashboard reads the array and says everything is healthy and drives are green. Not sure what else I can do hereâŚ
FYI until yesterday it was working fine on an old Intel Mac mini which died and I had to move everything to a M2 Mac mini with TahoeâŚ
Great idea with what you did - I wouldnât have thought of that. Strange that the service wonât appear at all, but maybe Tahoe changed things(?).
My icon is orange too (thereâs probably a way to change that but havenât bothered). My initial thoughts here are to try the following (especially because you migrated from an old Intel Mac to an M2 Mac and might be encountering some âweirdâ permissioning issues) - I suggest keeping the Drobo unplugged from the Mac for these steps: 1) Run the free âOnyxâ utility under your admin account and run all the utilities (Iâm not home to sign in and tell you exactly, but there is a ârun all tasksâ type option). It will restart your Mac once finished and will take a bit of time (maybe 5-10 minutes). Then when you log back into your normal user account, just let it run for awhile before doing anything further (let Spotlight index things, etc.). 2) For good measure, I would also shut down the Mac and physically unplug your Mac for a few minutes, then plug back in and start her up (it does a different kind of reset with the system I believe).
- Another thought if the above doesnât work is to just re-install the OS which might fix the weird permissioning issues (Iâd do this last if the above doesnât get you anywhere but I donât believe it would harm anything).
Separately, I have the following âlogin optionsâ enabled in my System preferences which you might just want to double-check as well for your normal user account (though probably not relevant since you are able to see the Drobo Dashboard):
Login Items & Extensions: âDDAssist.appâ
App Background Activity: âDrobo, Inc.â
Separately Separately, I ended up swapping all the drives between my Drobo and Synology because I wanted different volume sizes on both, and was able to reformat the Drobo no problem âstarting from scratchâ - so that part worked fine no problem using the Drobo Dashboard. This should be an option if you need to start over with your Drobo drives to reformat (hopefully you have a backup already of any critical data on the Drobo).
Hope this helps and sorry for all the words! 
Canât believe Drobo lives on, my 5D3 is still in my cupboard with the drives it had as some form of time capsule.
Iâm tempted to fire it up again, just to do a quarterly deep backup. It serves at lease some purpose (very non critical mind you).