disko/example/zfs-with-vdevs.nix

{
  disko.devices = {
    disk = {
      x = {
        type = "disk";
        device = "/dev/sdx";
        content = {
          type = "gpt";
          partitions = {
            ESP = {
              size = "64M";
              type = "EF00";
              content = {
                type = "filesystem";
                format = "vfat";
                mountpoint = "/boot";
              };
            };
            zfs = {
              size = "100%";
              content = {
                type = "zfs";
                pool = "zroot";
              };
            };
          };
        };
      };
      y = {
        type = "disk";
        device = "/dev/sdy";
        content = {
          type = "gpt";
          partitions = {
            zfs = {
              size = "100%";
              content = {
                type = "zfs";
                pool = "zroot";
              };
            };
          };
        };
      };
      z = {
        type = "disk";
        device = "/dev/sdz";
        content = {
          type = "gpt";
          partitions = {
            zfs = {
              size = "100%";
              content = {
                type = "zfs";
                pool = "zroot";
              };
            };
          };
        };
      };
      cache = {
        type = "disk";
        device = "/dev/sdc";
        content = {
          type = "gpt";
          partitions = {
            zfs = {
              size = "100%";
              content = {
                type = "zfs";
                pool = "zroot";
              };
            };
          };
        };
      };
    };
    zpool = {
      zroot = {
        type = "zpool";
        mode = "prescribed";
        rootFsOptions = {
          compression = "zstd";
          "com.sun:auto-snapshot" = "false";
        };
        mountpoint = "/";

        topology = {
          type = "zfs_topology";
          vdev = [
            {
              mode = "mirror";
              members = [ "x" "y" ];
            }
          ];
          special = {
            members = [ "z" ];
          };
          cache = "cache";
        };

        datasets = {
            # See examples/zfs.nix for more comprehensive usage.
            zfs_fs = {
              type = "zfs_fs";
              mountpoint = "/zfs_fs";
              options."com.sun:auto-snapshot" = "true";
            };
        };
      };
    };
  };
}