A Note About Capacity; Filling Drobo's Data Bays - Drobo User Manual

Here are three examples:
a) Start with three 250GB drives and
you'll have about 500GB of total
usable protected space.
b) Add a 500GB drive to increase total
usable protected space to
approximately 750GB.
c) Replace one of the smaller 250GB
drives with a 750GB drive and you'll
increase over-all usable protected space
to about one Terabyte (1,000GB).
Take comfort in knowing that Drobo
makes adding capacity as easy as adding
ink to a printer whenever you need it.

A note about capacity

Some years ago, computer manufacturers and hard drive
manufacturers started using different systems for measuring
hard drive capacity. The net result is that not all of a drive's rated
capacity is available to your computer. This discrepancy has
nothing to do with how Drobo works.

Filling Drobo's data bays

Once you've chosen
how many drives
and which capacities
to install, all you have to
do is remove Drobo's face plate and
then slide them into Drobo's Data Bays.
You should note that any pre-existing
data on the drives inserted into Drobo
will be erased. Be sure not to touch any exposed hard drive
circuit boards after unpacking and ensure the drive connectors are
pointed "in" to Drobo and "down" (as shown).
It doesn't matter which drive goes in which data bay, just slide the
Drive Lock to the left, and press the drive into the Data Bay until
you feel the connector "mate" at the rear of the Drobo and let the
Drive Lock snap behind the drive, securing it into place.
connectors
II. Getting started
5