Josh Babetski : Quixotic Bravado

My Drobo Set-up for Time Machine and SuperDuper on Mac

In my previous post: “I bought a Drobo, Now What?” I set up the backstory of getting a Drobo and researching the best way to set it up to work with Time Machine and SuperDuper. This post is a step-by-step of what I did next. I hope you find it useful.

Prepping the Drobo

While you can buy a Drobo with hard drives, you’re much better off buying them separately. You can see how much actual storage you will get out of the Drobo by using their Drobolator. I bought two Western Digital Caviar Green 1TB SATA hard drives from Newegg.com for $104.99 each. I picked them because although slower, they’re more energy efficient and are only used for back-up anyway. This is going to give me about a Terrabyte of usable back-up space since the information is duplicated on each of the drives. I can expand later if needed.

Unpacking the Drobo is pretty straight forward. BTW: They’ve done a great job with packaging and presentation once you open the box. Very impressive. As you go through the process of setting up your Drobo, I recommend starting a text file of information to reference later. I do this for all my hardware set-ups for easy reference of serial numbers, drive capacity, purchase date, and how-to information (like in this post), etc. It’ll come in handy later. Trust me.

1. Unpack the Drobo
2. Put the hard drives in the Drobo
3. Wire up the Firewire or USB cables
4. Install the Drobo Dashboard. If prompted to upgrade the Drobo Dashboard, do it.
5. Power-up the Drobo
6. In the dashboard, format the drobo. I left it at 2TBs after reading about the trade-offs.
7. You’ll likely get prompted about updating the firmware. Do this. The Drobo will then restart. Wait for it to come back up; enjoy the light show.

Assuming everything has gone well, in Finder you’ll now see that Drobo is mounted and available for use.

Disc Utility

Now let’s fire-up Disk Utility which is in Applications: Utilities: Disk Utility. Here we’re going to repartition the Drobo into volumes for Time Machine, SuperDuper, and storage for everything else one might rsync, copy, or otherwise backup.

1. Select the Drobo Disk on the left. It will say something like “2.0TB Drobo”
2. Select the “Partition” tab on the right
3. Underneath “Volume Scheme” click the “-” (minus sign) and erase the partition Drobo created. This is only important if you need GUID partitioning, like for Time Machine and as recommended by SuperDuper.
4. Under volume scheme, select the number of partitions you need to make. In my case it’s 3:
   • Time Machine
   • SuperDuper
   • Everything else
5. Resize and name partitions accordingly. Unless you have a reason not to, the format should be “Mac OS Extended (Journaled)” for all of them. I recommend unique names like “drobo-your machine name-tm” in case you connect to other external drives, make it easy to remember which volume is which.
6. Under options, select “GUID formatting”
7. Click “Apply”
8. After reformatting, you should now see new volumes on the left of the Disk Utility and in the Finder window.

You should now be able to point Time Machine and SuperDuper to the new back-up volumes.

Additional Notes

• For performance reasons, I recommend excluding your back-up volumes from Spotlight indexing. To do this, open “System Preferences” from the Apple menu, select Spotlight, and add the back-up volumes under the “Privacy” tab.
• If you’re copying data to Drobo from an smaller (or in my case smaller and busted) external drive, here’s a some quick instructions for copying over the data.
  1. Connect both the old External Drive and the Drobo
  2. In Disk Utility click the “Restore” tab on the right
  3. Drag the hard drive/volume/partition you want to copy from into the “Source” field
  4. Drag the volume you want to copy to into the “Destination” field
  5. Click “Restore”

  This will copy over all the data to your new drive.

• If you’re getting rid of the old drive, don’t forget to use the “Erase” feature in Disk Utility and use at least a “7-Pass Erase” on the drive so the data on it can’t be recovered. Just because you click delete doesn’t mean the data is gone; be safe before you toss, sell, or give away that drive!

This is what worked for me. Your needs or mileage may vary and my wisdom is as-is without any support or warranty. Good luck!