On Wed, Oct 2, 2019 at 3:35 PM Günther J. Niederwimmer <gjn at gjn.priv.at> wrote: > > This Board have 2 Controller!° > 00:1f.2 RAID bus controller: Intel Corporation C600/X79 series chipset SATA > RAID Controller (rev 06) > > On this controller all drives are found and it is possible to create a Raid1! > > 07:00.0 Serial Attached SCSI controller: Intel Corporation C602 chipset 4-Port > SATA Storage Control Unit (rev 06) > > But on this Contoller NO drives found? If you provide the device ID pairing [xxxx:yyyy] for the one that is not working, it will become clear. Can you show us the output from: lspci -nn Is it this one? Serial Attached SCSI controller [0107]: Intel Corporation C602 chipset 4-Port SATA Storage Control Unit [8086:1d6b] If so, the above device ID [8086:1d6b] is not supported in RHEL/CentOS 8, unfortunately. Akemi