I have a Gen 3 Drobo attached to a Mac. Split into two volumes one for data the other, smaller, for Time Machine.
I just upgraded to Mac OS Sierra and the latest Drobo 3.0 Dashboard. All was fine…until the main data drive disappears.
I tried rebooting the Mac and the Drobo. Things got worse when the Dashboard stopped recognizing the Drobo device. Meanwhile all green lights on the device itself.
I could see the raw device within Mac’s Disk Utility. A run of First Aid showed that there was corrupt data in journal. Looking around I found advice to remove journaling and lo! the disk remounted and the Dashboard recognizes the unit.
Lastly, I tried re-enabling journaling and the entire device drops, unmounts and I have to recycle its power to get it to reappear.
Is there anything I should be doing to re-enable journaling? Or am I facing a disk reformat?