I have a Drobo 8D. It keeps rebooting itself so many times throughout the day. Trying to figure what is the problem. The indicator is showing all hard drive to be healthy. I have iMac 27 inch on MacOs 10.14.6. I have not upgrade it to MacOs Catalina. Not sure about the stability of the New MacOs Catalina. I had to shut it down for now. Does anyone what the problem might be.
Here is a recent post for a 5D with a similar issue.
Note the Drobo articles reference in the first post, and also reach out for Drobo Support.
Hope this helps.