diff --git a/templates/polling.yaml.erb b/templates/polling.yaml.erb
index f2a7bd14..0a648d59 100644
--- a/templates/polling.yaml.erb
+++ b/templates/polling.yaml.erb
@@ -14,6 +14,9 @@ sources:
         - disk.read.requests
         - disk.write.bytes
         - disk.write.requests
+        - volume.size
+        - volume.snapshot.size
+        - volume.backup.size
         - hardware.cpu.util
         - hardware.memory.used
         - hardware.memory.total