S5000PAL SROMBSAS18E Raid10 from 6 disks

Hi,

I am trying to create a RAID10 volume, from 6 disks, but I am unable, I can only create raid 50 or raid 00 or raid 10 with 4 disks if I add a third drive to the span, it just thosent let me create

MB S5000PAL

Version: S5000.86B.15.00.01.01.110920101604

RAID controller: SROMBSAS18E

FW Package: 7.0.1-0075

FW:               1.12.280-0826

RA