woke up this morning to alerts on the Mac that the volumes on the Drobo had been incorrectly unmounted. It is connected to a thunderbolt 3 mac mini via a thunderbolt 3 to thunderbolt 2 adaptor that has been working fine for 5 or more years now. I have a single red light in the first drive position even though all 5 drive bays are filled with various 6 and 8 TB drives. The dashboard does see the drobo but suggests I should add a drive in the first position and that all the other bays are empty even though they are not.
I have rebooted both the computer and the drobo. I have removed the drives and re-inserted them and then powered back on as well. No change. I have replaced the power supply with a known good 150 watt 12v supply and the drobo itself comes up fine but never tries to spin up the drives as far as I can tell with either of them.
The firmware version says it is current when I do a check, says it is 4.1.3[7.196.105954] it’s definitely recognized but it can no longer see any of it’s drives. I tried to purchase a replacement but it seems you can’t get a drobo right now for love or money All out of stock everywhere. If anyone has any advice before I tear it apart to clean all it’s internal connectors and look for failed capacitors I might be able to replace I’d very much appreciate it!