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In the future, I will buy more drives and make use of the drobo's failure protection, but for now I have just one drive in it. Is there a way to get it to let me use the whole disk instead of only half? I'm using it as a backup of other disks, so I don't need redundant redundancy :P

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up vote 1 down vote accepted

From what I read when I looked into Drobo a while ago there is no way to turn this off. I just looked at their support site and it seems like when a single drive is used, half of it is reserved to mirror the data. This way if you run into data corruption or other unexpected problems, you are still protected. It does not protect again drive failure (obviously). If you want to use a single drive you should use either a SATA-to-USB cable or an enclosure. The Drobo is made as a drive protection device, therefore you are stuck with that functionality for the good and the bad.

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It seems that this option is only available in the driver of the DroboPro.

From the drobo site:

The BeyondRAID featured on DroboPro even allows IT managers to switch from single to dual disk redundancy with a single click, thereby ensuring enterprise-level dual parity data protection if required.

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