autoscrub no zfs

nixos/machines/chungus/hardware-configuration/default.nix

@@ -19,6 +19,9 @@
   boot.supportedFilesystems = [ "zfs" ];
   # head -c4 /dev/urandom | od -A none -t x4
   networking.hostId = "e439b116";
-  services.zfs.autoSnapshot.enable = true;
+  services.zfs = {
+    autoSnapshot.enable = true;
+    autoScrub.enable = true;
+  };
 
 }

nixos/machines/chungus/hardware-configuration/disko-config.nix

@@ -127,6 +127,7 @@ in
       };
 
       # `zpool import -f zraid` once on the first boot and reboot
+      # todo: rename to tank next time (this is the standard)
       zraid = {
         type = "zpool";
         mode = "raidz2";