Asus 1U Rackmount Barebone Server RS120-E3 (PA4) - Manual (Page 113)

A S U S R S 1 2 0 - E 3 / P A 4 A S U S R S 1 2 0 - E 3 / P A 4 A S U S R S 1 2 0 - E 3 / P A 4 A S U S R S 1 2 0 - E 3 / P A 4 A S U S R S 1 2 0 - E 3 / P A 4 6 - 7 6 - 7 6 - 7 6 - 7 6 - 7
5. Press <F10>, select the configurable array, then press <SpaceBar>.
The logical drive information appears including a Logical Drive menu that
allows you to change the logical drive parameters.