Good I have 2 hard drives connected to my Raspberry Pi with OMV and in the administration I get the 2 hard drives I have in extesion Ext4 but when I go to the raid section to make the raid I do not get any device you create partitions and that and never It comes out, I'm new in this now I have the hard drives without partitions or anything if you could help me to appear to be able to do it is that I do not know what to do.
At the moment that I made the photos, I only had 1 hard drive connected but it also does not appear in the raid section.
Here I leave you a couple of captures
I hope you can help me, Thanks