servers/mermet/system/zfs.nix

   1 { pkgs, lib, config, ... }:
   2
   3 {
   4   imports = [];
   5
   6   boot.supportedFilesystems = [ "zfs" ];
   7
   8   # The 32-bit host id of the machine, formatted as 8 hexadecimal characters.
   9   # You should try to make this id unique among your machines.
  10   # Manually generated with : head -c4 /dev/urandom | od -A none -t x4 | cut -d ' ' -f 2
  11   networking.hostId = "69c40b03";
  12
  13   # noop is the recommended elevator with zfs.
  14   boot.kernelParams = [
  15     "elevator=noop"
  16   ];
  17
  18   # Ensure extra safeguards are active that zfs uses to protect zfs pools.
  19   boot.zfs.forceImportAll  = false;
  20   boot.zfs.forceImportRoot = false;
  21
  22   boot.zfs.enableUnstable = true;
  23   boot.zfs.requestEncryptionCredentials = true;
  24
  25   # Enables periodic scrubbing of ZFS pools.
  26   services.zfs.autoScrub.enable = true;
  27
  28   environment = {
  29     systemPackages = [
  30       pkgs.mbuffer
  31       pkgs.zfs
  32     ];
  33   };
  34
  35   /*
  36   # Enable the (OpenSolaris-compatible) ZFS auto-snapshotting service.
  37   services.zfs.autoSnapshot = {
  38     enable   = true;
  39     frequent = ;
  40     hourly   = ;
  41     daily    = ;
  42     weekly   = ;
  43     monthly  = ;
  44   };
  45   */
  46
  47   /*
  48   fileSystems."/boot" =
  49     { device = "bpool/boot";
  50       fsType = "zfs";
  51     };
  52   */
  53   fileSystems."/" =
  54     { device = "rpool/root";
  55       fsType = "zfs";
  56     };
  57
  58   fileSystems."/home" =
  59     { device = "rpool/home";
  60       fsType = "zfs";
  61     };
  62
  63   fileSystems."/nix" =
  64     { device = "rpool/nix";
  65       fsType = "zfs";
  66     };
  67
  68   fileSystems."/nix/var" =
  69     { device = "rpool/nix/var";
  70       fsType = "zfs";
  71     };
  72
  73   fileSystems."/var" =
  74     { device = "rpool/var";
  75       fsType = "zfs";
  76     };
  77
  78   fileSystems."/var/cache" =
  79     { device = "rpool/var/cache";
  80       fsType = "zfs";
  81     };
  82
  83   fileSystems."/var/log" =
  84     { device = "rpool/var/log";
  85       fsType = "zfs";
  86     };
  87
  88   fileSystems."/var/mail" =
  89     { device = "rpool/var/mail";
  90       fsType = "zfs";
  91     };
  92
  93   fileSystems."/var/tmp" =
  94     { device = "rpool/var/tmp";
  95       fsType = "zfs";
  96     };
  97
  98   fileSystems."/var/www" =
  99     { device = "rpool/var/www";
 100       fsType = "zfs";
 101     };
 102 }