diff --git a/nixos/hosts/nixos-vm-02/disks.nix b/nixos/hosts/nixos-vm-02/disks.nix
index 4fff6b70..b1c9c102 100644
--- a/nixos/hosts/nixos-vm-02/disks.nix
+++ b/nixos/hosts/nixos-vm-02/disks.nix
@@ -1,6 +1,8 @@
 {
   boot.loader.grub.device = "/dev/sda";
   boot.initrd.luks.devices."sda2".device = "/dev/sda2";
+  services.btrfs.autoScrub.enable = true;
+  services.btrfs.autoScrub.interval = "weekly";
 
   disko.devices.disk.sda = {
     device = "/dev/sda";
@@ -32,8 +34,22 @@
             settings.keyFile = "/tmp/secret.key";
             content = {
               type = "filesystem";
-              format = "ext4";
-              mountpoint = "/";
+              format = "btrfs";
+              # extraArgs = [ "-f" ];
+              subvolumes = {
+                "/root" = {
+                  mountpoint = "/";
+                  mountOptions = [ "compress=zstd" "noatime" ];
+                }; # root
+                "/home" = {
+                  mountpoint = "/home";
+                  mountOptions = [ "compress=zstd" "noatime" ];
+                }; # home
+                "/nix" = {
+                  mountpoint = "/nix";
+                  mountOptions = [ "compress=zstd" "noatime" ];
+                }; # nix
+              }; # subvolumes
             }; # content.content
           }; # content
         } # partition 2