Seagate Server - Manual (Page 20)

Mirra Manual for Windows Release 2.2 12
Once the Microsoft™ .NET Framework 1.1 software has, if necessary, been
installed, the Disk Space Requirements window shows you how much space
is available on each of your disk drives and how much space the Mirra
software requires:
Figure 3~5 Disk Space Requirements
Step 4: Review the information provided.
If necessary, you can change the destination drive or remove files to make
room on the following screen.
Step 5: Click OK.