Hello Goswin,
On the BIOS RAID configuration i deleted the volume and reset the disks to non-raid disks. Also, to ensure the disks are clean i started a Debian live and format both drives to ensure they are clean, but no results.
The oputs of the commands you ask doesnt appear any raid volume, disks appears as normal and non raid ones.
For "ls -lh /dev/mapper" Only appears the live partitions.
For "cat /proc/partitions" i see all devices connected to the server, but not RAID volumes.
Thank you for your help