Calculating Capacity To Use - Drobo 8D User Manual

1.6.1

Calculating Capacity to Use

Based on the number and capacity of the drives you use in the Drobo device, the best way to
determine how much usable protected storage space will be available for data is to use our
Calculator.
A shortcut to estimating the capacity available for your data is to omit the largest drive and then add
the capacity of the remaining drives. If you plan to use Dual Disk Redundancy, omit the largest two
drives. For example:
Single Disk (Default) Redundancy
Dual Disk Redundancy
Notes:
Actual capacity may vary from the value shown in the above example due to different
systems used for rating capacity. This has nothing to do with Drobo devices.
Approximately 91% of the stated capacity will be available for data storage purpose.
Know that all Drobo devices enable you to easily increase storage capacity at any time by
simply inserting additional drives or replacing smaller drives with larger ones.
Related topics:
Managing Capacity (Drive Space)
Adding Drives
Checking Storage Usage and Device Status Information
Drobo 8D User Guide
Capacity
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