Acer HDS AMS200 Reference Manual page 217

4. Select one H-LUN from the H-LUN list in the User LU dialog box, select an LUN that you
want to assign for the H-LUN from the Available Logical Units list, and click
button.
The selected H-LUN and LUN will be moved to the Logical Unit for User Volume list.
5. Repeat step 4 until all the LUNs that you want to assign are moved to the Logical Unit
for User Volume, click the OK button.
6. A confirmation message appears, click the OK button.
Acer | HDS AMS200 User and Reference Guide 197