Hi, I have a Fujitsu Primergy RX300 S8 2x Xeon E5-2630L v2 24x 2.4 GHz server 64 GB RAM 4x1.2 TB HDD with RAID controller Ctrl SAS 6G 1GB (D3116C), I installed a 2.5 "SATA disk which PROXMOX latest version is installed (I installed proxmox on the SATA disk because I could not install it on the SAS disks). I prepare the RAID 5, (I also tried with RAID1 and RAID0), I start proxmox and it tells me UNKNOWN DISK, if I try to initialize the disk in GPT gives me an error and the RAID "breaks" and I have to start recreating it etc. I would like to use SAS disks for VM storage. If you can help me I would be very happy. Thank you all.