My dead Drobo saga’s conclusion…
- Grades: Drobo customer support: A+. DiskWarrior: F. Disk Rescue 3: A-.
- Don’t consider your Drobo to be hot-swappable. Ever.
- Buy Disk Rescue 3 and have it on hand.
- Run Disk Utility and do a Verify Disk once a month. If that’s too often for you, do it once a quarter.
In fact, DiskWarrior also doesn’t see the Drobo when it’s run stand-alone off their DVD! I tried this on my wife’s iMac. OS X sees the disk (but does not mount it), Disk Utility lists it and allows me to try a Verify Disk and Repair Disk, but DiskWarrior doesn’t see it. I’ll try their tech support next.
I’ve filed a ticket with their customer support system. They’ve been excellent when I’ve used them in the past, although those times were for nothing as serious as this.
I’m migrating my files and apps to my new MacBook Pro. A highly anticipated improvement was connecting my Drobo S to a USB 3.0 interface, instead of my previous laptop’s USB 2.0 bus.
During my migration, the Drobo Dashboard advised me that a Drobo firmware update was available. I did the update, which -boom- bricked my Drobo.
After trying rebooting, power-cycling the Drobo, and plugging it into the other USB socket, I’m at a point where Drobo Dashboard says the Drobo is healthy. But OS X won’t mount it. Disk Utility says:
Unable to bootstrap transaction group 6000: cksum mismatch
No valid commit checkpoint found
The volume xxxxxxx was found corrupt and needs to be repaired.
Problems were found with the partition map which may prevent booting
Error: This disk needs to be repaired. Click Repair Disk.
I then run Repair Disk, and it tells me the same thing! So Repair Disk can’t repair the disk!
I bought DiskWarrior (for $109, I’ll have you know) but it can’t repair a disk that isn’t mounted. They’ll ship me a physical CD-ROM of my purchase, so I can try booting from it. Oh, but wait, my MacBook Pro/Retina doesn’t have a CD-ROM drive!
I am not a happy camper.