ceph-waw1 -> ceph-waw2

Change-Id: I03d6244b9697a9efc06492114ef90cdb01e17601
diff --git a/kube/postgres.libsonnet b/kube/postgres.libsonnet
index bc087cf..d82a89a 100644
--- a/kube/postgres.libsonnet
+++ b/kube/postgres.libsonnet
@@ -8,7 +8,7 @@
     cfg:: {
         namespace: error "namespace must be set",
         appName: error "app name must be set",
-        storageClassName: "waw-hdd-redundant-1",
+        storageClassName: "waw-hdd-paranoid-2",
         prefix: "", # if set, should be 'foo-'
 
         image: "postgres:10.4",