Test

nixos/hosts/osaka-vultr-01/disks.nix

@@ -4,6 +4,9 @@
     device = "/dev/vda";
     enableCryptodisk = true;
   };
+  boot.initrd.luks.devices."DISK".device = "/dev/vda2";
+  services.btrfs.autoScrub.enable = true;
+  services.btrfs.autoScrub.interval = "weekly";
 
   disko.devices.disk.vda = {
     device = "/dev/vda";
@@ -22,12 +25,25 @@
             name = "crypted";
             extraOpenArgs = [ "--allow-discards" ];
             content = {
-              type = "filesystem";
+              type = "btrfs";
-              format = "ext4";
+              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
+        }; # luks.partitions
       }; # partitions
     }; # content
   }; # disko.devices.disk.vda