nixos-configs/devices/nos/modules/mergerfs.nix

{pkgs, ...}: let
  fsPkgs = builtins.attrValues {inherit (pkgs) mergerfs cifs-utils;};
in {
  system.fsPackages = fsPkgs;
  environment.systemPackages = fsPkgs;

  fileSystems = {
    "MergerFS Data" = {
      mountPoint = "/data";
      fsType = "fuse.mergerfs";
      device = "/mnt/drives/?tb*";
      options = [
        "cache.files=partial"
        "allow_other"
        "category.create=lfs"
        "minfreespace=50G"
        "fsname=mergerfs"
      ];
    };

    "d1 3tb-1" = {
      mountPoint = "/mnt/drives/3tb1";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD30EFRX-68EUZN0_WD-WMC4N1236473-part1";
    };

    "d2 3tb-2" = {
      mountPoint = "/mnt/drives/3tb2";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD30EFRX-68EUZN0_WD-WMC4N1233153-part1";
    };

    "d3 4tb-1" = {
      mountPoint = "/mnt/drives/4tb1";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD40EZAZ-19SF3B0_WD-WX32D81DE8RD-part1";
    };

    "d4 4tb-2" = {
      mountPoint = "/mnt/drives/4tb2";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD40EZAZ-19SF3B0_WD-WX32D81DE6Z0-part1";
    };

    "d5 8tb-1" = {
      mountPoint = "/mnt/drives/8tb1";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD8003FFBX-68B9AN0_VAJ99UDL-part1";
    };

    "p0 8tb-2" = {
      mountPoint = "/mnt/drives/parity0";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD8003FFBX-68B9AN0_VDGL4HZD-part1";
    };

    "p1 8tb-3" = {
      mountPoint = "/mnt/drives/parity1";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD80EFZZ-68BTXN0_WD-CA13WUYK-part1";
    };

    "d6 8tb-4" = {
      mountPoint = "/mnt/drives/8tb4";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD80EAZZ-00BKLB0_WD-CA1AVU7K-part1";
    };

    "d7 8tb-5" = {
      mountPoint = "/mnt/drives/8tb5";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-WDC_WD80EAZZ-00BKLB0_WD-CA1GN0GK-part1";
    };

    "d8 8tb-6" = {
      mountPoint = "/mnt/drives/8tb6";
      fsType = "ext4";
      device = "/dev/disk/by-id/ata-ST8000DM004-2U9188_ZR15JMHV-part1";
    };
  };
}