Today I started up my computer and only one volume out of 6 on my GEN2 Drobo mounted, but that one volume is now read only and not all the files on it are available in the finder (111GB out of 1.1GB). The other volumes I had on this Drobo show up as unformatted volumes in Drobo Dashboard. However if I check the overall used space in Drobo Dashboard, it shows almost 6.5TB, the amount of data that is supposed to be on all the volumes together.
I tried restarting everything, swapping to another power adapter and Firewire cable, plugging in after the comp is started, and I ran Disk Warrior. Disk Warrior sees several of the missing volumes (along with phantom unformatted ones) but there doesn’t seem to be any way to mount the missing volumes to repair them. I haven’t run Disk Warrior on the one volume that is mountable yet because I don’t want to cause more trouble unintentionally until I know how to fix this.
I know the data is on there. I just don’t know how to access it or restore the missing volumes. I just ran Disk Warrior on all of the volumes two weeks ago and everything came up clean. The drives are all showing happy green and they are quite new, so I’m sure they are fine. I don’t want to do anything to lose the data on here. Is this a hardware problem?
Can anyone offer a suggestion for how I should proceed to repair this problem?