About a week ago, my second Drobo (with four matching 1TB WD drives in it) has lost a volume. It previously had “Drobo2-1”, “Drobo2-2” and “Drobo2-3”. I now only have -2 and -3… And 1TB of stuff I need to access is on the -1 volume which isn’t showing up.
I have this hooked to an Intel iMac via FireWire. Power cycling computer and Drobo has not helped. I was at 1.3.4 and even updated it to 1.3.5 and still nothing.
In Disk Utility I do see the volume, unmounted, and I can verify it (“The volume Drobo2-1 appears to be OK.”) but cannot mount it. It reports “The disk ‘Drobo2-1’ could not be mounted. / Try running First Aid on the disk then retry mounting.”
(I submitted this as a support inquiry on the Drobo main site last week but have yet to hear back…)