numbus-server/config-files/disks/mirror.nix

    # Data mirror configuration generated by deploy.sh
    disk = {
      "content-1" = {
        type = "disk";
        device = "${CONTENT_DISK_1}";
        content = {
          type = "gpt";
          partitions = {
            "data-1" = {
              size = "100%";
              content = {
                type = "luks";
                name = "crypted-content-1";
                settings.keyFile = "/etc/secrets/disks/content-disk-1";
              };
            };
          };
        };
      };
      "parity-1" = {
        type = "disk";
        device = "${PARITY_DISK_1}";
        content = {
          type = "gpt";
          partitions = {
            "parity-1" = {
              size = "100%";
              content = {
                type = "luks";
                name = "crypted-parity-1";
                settings.keyFile = "/etc/secrets/disks/parity-disk-1";
              };
            };
          };
        };
      };
    };
    mdadm.raid-devices = [ "/dev/mapper/crypted-content-1" "/dev/mapper/crypted-parity-1" ];
    fs."/dev/md/data-storage" = {
      type = "xfs";
      label = "data-storage";
      mountpoint = "/mnt/data-storage";
    };