@@ -302,6 +302,24 @@ options for `zfs` start with `zfs` and options for `btrfs` start with `btrfs`.

 #### Devicemapper options

+This is an example of the configuration file for devicemapper on Linux:

+

+```json

+{

+  "storage-driver": "devicemapper",

+  "storage-opts": [

+    "dm.thinpooldev=/dev/mapper/thin-pool",

+    "dm.use_deferred_deletion=true",

+    "dm.use_deferred_removal=true"

+  ],

+  "log-driver": "json-file",

+  "log-opts": {

+    "max-size": "10m",

+    "max-file": "10"

+  }

+}

+```

+

 ##### `dm.thinpooldev`

 Specifies a custom block storage device to use for the thin pool.