diff --git a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-1.json b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-1.json
index 8dd19700164874a42b0bb1eb644125bfee4be15d..6b7f6ecdb8e97a5264e44473c10c249e94ff8668 100644
--- a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-1.json
+++ b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-1.json
@@ -74,7 +74,7 @@
   "storage_devices": [
     {
       "by_id": "",
-      "by_path": "/dev/disk/by-path/dummy",
+      "by_path": "/dev/disk/by-path/pci-0000:82:00.0-scsi-0:1:0:0",
       "id": "disk0",
       "interface": "SAS",
       "model": "unknown",
diff --git a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-2.json b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-2.json
index 84e75e25b6ac70b261b2fa6265e3d71c06ad8515..595bcc94890837536cb7ced155a0498008c450bc 100644
--- a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-2.json
+++ b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-2.json
@@ -74,7 +74,7 @@
   "storage_devices": [
     {
       "by_id": "",
-      "by_path": "/dev/disk/by-path/dummy",
+      "by_path": "/dev/disk/by-path/pci-0000:82:00.0-scsi-0:1:0:0",
       "id": "disk0",
       "interface": "SAS",
       "model": "unknown",
diff --git a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-3.json b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-3.json
index cbed98eeb2290404a27bcc0d61153b152843ca5d..028811a99112fabcf10dfaa5edd3af54f8e0d5a2 100644
--- a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-3.json
+++ b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-3.json
@@ -74,7 +74,7 @@
   "storage_devices": [
     {
       "by_id": "",
-      "by_path": "/dev/disk/by-path/dummy",
+      "by_path": "/dev/disk/by-path/pci-0000:82:00.0-scsi-0:1:0:0",
       "id": "disk0",
       "interface": "SAS",
       "model": "unknown",
diff --git a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-4.json b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-4.json
index b7904efcb0f902864d0e186809b814cc83cc389c..dbf60af294823e69e7646e263e5d58180ec21e23 100644
--- a/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-4.json
+++ b/data/grid5000/sites/rennes/clusters/roazhon12/nodes/roazhon12-4.json
@@ -74,7 +74,7 @@
   "storage_devices": [
     {
       "by_id": "",
-      "by_path": "/dev/disk/by-path/dummy",
+      "by_path": "/dev/disk/by-path/pci-0000:82:00.0-scsi-0:1:0:0",
       "id": "disk0",
       "interface": "SAS",
       "model": "unknown",
diff --git a/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml b/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml
index bdb0fda4ab511a200c3a624d3782bdbdf2e6a5a3..eeb6fcbf5bffcced6019b5ae07767d92af749a57 100644
--- a/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml
+++ b/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml
@@ -51,7 +51,7 @@ nodes:
         interface: SAS
         storage: SSD
         model: unknown
-        by_path: "/dev/disk/by-path/dummy"
+        by_path: "/dev/disk/by-path/pci-0000:82:00.0-scsi-0:1:0:0"
   roazhon12-1:
     network_adapters:
       bmc: