If we have HW Raid, then yes but you suggested software raid on Debian. Why do i need software Raid if i have HW Raid? As we discussed above, the only way to care about OS disks is HW Raid, software Raid no solution.
Hello,
in official Proxmox doc: https://pve.proxmox.com/wiki/Deploy_Hyper-Converged_Ceph_Cluster recommended completely to avoid hardware Raid. Ok, i will avoid but how to care about disks where installed Proxmox OS itself?