FYI: if you use keepvault for cloud based backups, you could also set a Drobo as KeepVaults local backup destination. You would have easy access to the data as, long as you don't check the encryption box.
I'm using the Drobo as a backup for WHS with, another backup stored in the cloud. I belive my data is probably pretty much safe.
The scary thing is, if think of the Drobo as a complete storage and backup solution, you could find yoursef losing all of your data.
Drobo's storage & backup model has a nasty flaw! Wish I would have known this before purchasing.
The data is stored on the Drobo, in a Proprietary format. This means, if your Drobo unit fails or bricks, your pretty much S.O.L in recovering your data.
Your only option would be moving the Disks to another Drobo unit. I've read that, you can move the drives to another Drobo of the same make & model or newer. I've also read, the Drobo unit must be the exact same make and model, which is even more disheartning.
Drobo's solution is, you should have backups of your backups.
This is fine except, Drobo advertises themself as, a complete storage and backup solution.