How To Create Software Raid 6 From OS Install.
RAID 6 uses two parity stripes, the practice of dividing data across the set of hard disks or SSDs, on each disk. It allows for two disk failures within the RAID set before any data is lost.
Reset and reformat all disk.
From the first disk put 1Gb in /boot .
leave unformatted the same number of GB on each partition and press create software RAID (md)
Select the “Create software RAID (“MD”)” button to open the creation dialog. The server installer supports creating devices with RAID level 6→ select all disk → press create.
From md0 free space create the partitions ass needed or required.
Press done and continue the installation.
