diff --git a/.env.sample b/.env.sample
index d3d4a9c..b9ded76 100644
--- a/.env.sample
+++ b/.env.sample
@@ -32,5 +32,12 @@ BLOCK_SIZE=1MiB # only increase if there is a fast network connection between no
 #LOCAL_FOLDER_META=/path/on/docker/host
 #LOCAL_FOLDER_DATA=/path/on/docker/host
 
+# Pass an array of directories as a string or a directory other than the
+# default.  Mount different disks under LOCAL_FOLDER_DATA for Garage to
+# have access to them.
+#
+# https://garagehq.deuxfleurs.fr/documentation/operations/multi-hdd/
+#DATA_DIRS='[{path="/var/lib/garage/meta",capacity="1T"}]'
+
 ## Enable Full Data Backups (not just metadata)
 # COMPOSE_FILE="$COMPOSE_FILE:compose.fullbackup.yml"
diff --git a/garage.toml.tmpl b/garage.toml.tmpl
index 4861a7e..d0c72cd 100644
--- a/garage.toml.tmpl
+++ b/garage.toml.tmpl
@@ -1,5 +1,9 @@
 metadata_dir = "/var/lib/garage/meta"
+{{ if env "DATA_DIRS" }}
+data_dir = {{ env "DATA_DIRS" }}
+{{ else }}
 data_dir = "/var/lib/garage/data"
+{{ end }}
 db_engine = "{{ if env "DATABASE_ENGINE" }}{{ env "DATABASE_ENGINE" }}{{ else }}lmdb{{ end }}"
 metadata_auto_snapshot_interval = "6h"
 
@@ -34,4 +38,4 @@ api_bind_addr = "0.0.0.0:3903"
 admin_token_file = "/run/secrets/admin_token"
 metrics_require_token = true
 metrics_token_file = "/run/secrets/metrics_token"
-{{ end }}
\ No newline at end of file
+{{ end }}