I have a helios4 with 2 x WD Red HDDs of the same type and size (NASWare 2 & 3) and none of those drives show up under the RAID section in OMV. They both show up under file systems as ext4. I tried wiping one of them, but it made no difference. I tried them both mounted and unmounted, no luck. Tried different kernels including 4.14.17, 4.14.18 etc.
Anybody has any bloody idea how to make this piece of ... work???
Thanks!