diff --git a/k8s/apps/portainer/portainer-values.yaml b/k8s/apps/portainer/portainer-values.yaml
index b323258..5d97068 100644
--- a/k8s/apps/portainer/portainer-values.yaml
+++ b/k8s/apps/portainer/portainer-values.yaml
@@ -52,7 +52,8 @@ tolerations:
     operator: Exists
     effect: NoSchedule
 
-# Pin to az-a (talos-cp-1) — sole Longhorn storage node. Its RWO PVC can only
-# attach there; without this the pod may land on cp-2/cp-3 and fail to mount.
+# Pin to az-b (talos-cp-2) — sole Longhorn storage node (dedicated disks).
+# Its RWO PVC can only attach there; without this the pod may land on
+# cp-1/cp-3 and fail to mount.
 nodeSelector:
-  topology.kubernetes.io/zone: az-a
+  topology.kubernetes.io/zone: az-b