diff --git a/data/grid5000/sites/rennes/servers/rook-storage0.json b/data/grid5000/sites/rennes/servers/rook-storage0.json
index 693922be316d962d3f01ac87d19cd1cc5ba0734d..cd42a056efb4c734031cd6efaecf96805e524066 100644
--- a/data/grid5000/sites/rennes/servers/rook-storage0.json
+++ b/data/grid5000/sites/rennes/servers/rook-storage0.json
@@ -1,6 +1,6 @@
 {
   "alias": [
-    "ceph"
+    "ceph1"
   ],
   "kind": "physical",
   "network_adapters": {
diff --git a/data/grid5000/sites/rennes/servers/rook-storage1.json b/data/grid5000/sites/rennes/servers/rook-storage1.json
index 33629001b5ddb257480762197ec7e8a9ffb7af57..40e74bf349b0eb179dd9e6d7d24dae59658e347d 100644
--- a/data/grid5000/sites/rennes/servers/rook-storage1.json
+++ b/data/grid5000/sites/rennes/servers/rook-storage1.json
@@ -1,6 +1,6 @@
 {
   "alias": [
-
+    "ceph2"
   ],
   "kind": "physical",
   "network_adapters": {
diff --git a/data/grid5000/sites/rennes/servers/rook-storage3.json b/data/grid5000/sites/rennes/servers/rook-storage3.json
index f813c307ebd0219b973634f17438ab4fa5eecad5..4fb11c9e9ea821a42f920b4b531ad0e71dd46363 100644
--- a/data/grid5000/sites/rennes/servers/rook-storage3.json
+++ b/data/grid5000/sites/rennes/servers/rook-storage3.json
@@ -1,6 +1,6 @@
 {
   "alias": [
-
+    "ceph0"
   ],
   "kind": "physical",
   "network_adapters": {
diff --git a/input/grid5000/sites/rennes/servers/servers.yaml b/input/grid5000/sites/rennes/servers/servers.yaml
index 0a0c752adc24c6adc7a7c147845e9d0c13a14a93..f93de151adc83bc86671a951fa87cfac214ee562 100644
--- a/input/grid5000/sites/rennes/servers/servers.yaml
+++ b/input/grid5000/sites/rennes/servers/servers.yaml
@@ -72,7 +72,7 @@ srv-bigdata:
 rook-storage0:
   kind: physical
   alias:
-    - ceph
+    - ceph1
   warranty: 2018-11
   serial: GQHZKZ1
   network_adapters:
@@ -83,7 +83,8 @@ rook-storage0:
 
 rook-storage1:
   kind: physical
-  alias: []
+  alias:
+    - ceph2
   warranty: 2018-11
   serial: GMG6LZ1
   network_adapters:
@@ -105,7 +106,8 @@ rook-storage2:
 
 rook-storage3:
   kind: physical
-  alias: []
+  alias:
+    - ceph0
   warranty: 2018-11
   serial: FQJ4LZ1
   network_adapters: