Though it is not necessary, for security purposes, we advise you to set
up an administrative username and password in order to manage your
Drobo FS.
Are you curious about how your disks are being used? Click "How is my
storage being used?" The capacity breakdown bar will appear showing
you how your Drobo FS is using storage.
Available for data: Total protected space on Drobo FS that is
available to store data
Reserved for expansion: Unusable capacity reserved for future
use when one hard drive is larger than the others. This space
will become available when you add a larger capacity hard drive
or replace a smaller drive with a larger one.
Used for protection: Storage capacity that is used to protect
your data against a drive failure
Overhead: Capacity used by Drobo FS for management
You can explore different hard drive combinations using the Capacity
Calculator web tool at www.drobo.com/calculator.
The Data tab in Advanced Controls gives you in-depth details on the
status of your Drobo FS. You should go to this screen if Drobo FS is in
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