Hitachi 220H Bios Manual page 107

8. The following window is displayed.
If you build a new virtual drive, select all the Drive Group added in the step 7
from the pull down menu in the Array With Free Space pane.
If you add a virtual drive to the already existing Drive Group, select that from
the pull down menu in the Array With Free Space pane.
9. Click Add to SPAN.
If you add a virtual drive to the already existing Drive Group, select
either one of the Drive Group and then click Add to SPAN. Then all
the currently building Drive Groups are selected.
10. The following window is displayed. Click Next.
Hitachi Compute Rack 210H/220H BIOS Guide
MegaRAID WebBIOS 2-43