I have two Drobos attached to my iMac, a 5D and a Drobo S. The 5D is working fine, but the S has stopped appearing in finder. They both appear in Drobo Dashboard and I can access all functions there.
Drobo dashboard is reporting the S status as healthy and with spare capacity. I have all bays loaded with 4, 2, 2, 2 and 2 TB drives, all green status, 5TB used and 1.53 TB free, total 7.24 TB. Firmware is 2.1.5. Latest versions of Dashboard and Drobo firmware are being reported by dashboard.
I have safely powered down both Drobos and disconnected the Thunderbolt and USB ports. I have restarted the Drobos with no connection to the iMac and they eventually come up in standby as expected. I have rebooted the iMac and reattached the Drobos. They reappear in Dashboard as expected, but the Drobo S is still not showing in Finder.
Mac disk utility is showing both Drobos but the Drobo S is reported as a 17.59 TB capacity external physical disk that is unwritable with no available space. This is not consistent with the Drobo Dashboard report.
Can anyone suggest how I can get my Drobo S to show in Finder so that I can do some file management with it?