diff --git a/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-1.json b/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-1.json
index 71e8bf7db4fd39d23ca8a9b939d2f359d73413cb..ffc35b2d8e7d5afbf8589ea26ffab7c5dbdc6a0b 100644
--- a/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-1.json
+++ b/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-1.json
@@ -131,10 +131,10 @@
       "device": "sda",
       "driver": "mptsas",
       "interface": "SAS",
-      "model": "MBB2147RC",
-      "rev": "D406",
+      "model": "ST9146802SS",
+      "rev": "S207",
       "size": 146815733760,
-      "vendor": "FUJITSU"
+      "vendor": "SEAGATE"
     }
   ],
   "supported_job_types": {
diff --git a/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-11.json b/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-11.json
index e4695a7900141d743025fa263ab9f99ee72faacc..01999679d14638e805a02481a2ad8ca60359adcb 100644
--- a/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-11.json
+++ b/data/grid5000/sites/luxembourg/clusters/granduc/nodes/granduc-11.json
@@ -131,10 +131,10 @@
       "device": "sda",
       "driver": "mptsas",
       "interface": "SAS",
-      "model": "ST9146802SS",
-      "rev": "S207",
+      "model": "MBB2147RC",
+      "rev": "D406",
       "size": 146815733760,
-      "vendor": "SEAGATE"
+      "vendor": "FUJITSU"
     }
   ],
   "supported_job_types": {
diff --git a/generators/input/sites/luxembourg/clusters/granduc.yaml b/generators/input/sites/luxembourg/clusters/granduc.yaml
index 472e0000b5decd22aaad04b25d5d45c422240513..f37af553986cab1eb2b8c9f77ace28eea45ae7bd 100644
--- a/generators/input/sites/luxembourg/clusters/granduc.yaml
+++ b/generators/input/sites/luxembourg/clusters/granduc.yaml
@@ -53,11 +53,11 @@ granduc-1:
       switch_port: Gi1/1
   block_devices:
     sda:
-      model: MBB2147RC
+      model: ST9146802SS
       device: sda
       size: 146815733760
-      rev: D406
-      vendor: FUJITSU
+      rev: S207
+      vendor: SEAGATE
   operating_system:
     kernel: 2.6.32-5-amd64
     name: debian
@@ -866,15 +866,11 @@ granduc-11:
     vendor: Dell Inc.
   block_devices:
     sda:
-      model: ST9146802SS
+      model: MBB2147RC
       device: sda
       size: 146815733760
-      rev: S207
-      vendor: SEAGATE
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
+      rev: D406
+      vendor: FUJITSU
   operating_system:
     kernel: 2.6.32-5-amd64
     name: debian
@@ -1355,10 +1351,6 @@ granduc-16:
       size: 146815733760
       rev: S207
       vendor: SEAGATE
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
   chassis:
     serial_number: JZV883J
     manufacturer: Dell Inc.
@@ -1445,10 +1437,6 @@ granduc-17:
       size: 300000000000
       rev: FS64
       vendor: SEAGATE
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
   chassis:
     serial_number: 20W883J
     manufacturer: Dell Inc.
@@ -1535,10 +1523,6 @@ granduc-18:
       size: 146815733760
       rev: D406
       vendor: FUJITSU
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
   chassis:
     serial_number: GQ2593J
     manufacturer: Dell Inc.
@@ -1578,10 +1562,6 @@ granduc-19:
       size: 146815733760
       rev: S207
       vendor: SEAGATE
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
   network_interfaces:
     eth0:
       mounted: true
@@ -1715,10 +1695,6 @@ granduc-20:
       size: 146815733760
       rev: S207
       vendor: SEAGATE
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
   chassis:
     serial_number: 39N983J
     manufacturer: Dell Inc.
@@ -1754,10 +1730,6 @@ granduc-21:
       size: 146815733760
       rev: D80A
       vendor: FUJITSU
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
   operating_system:
     kernel: 2.6.32-5-amd64
     name: debian
@@ -1844,10 +1816,6 @@ granduc-22:
       size: 146815733760
       rev: D406
       vendor: FUJITSU
-    sdb:
-      model: vmDisk
-      device: sdb
-      rev: 0.01
   operating_system:
     kernel: 2.6.32-5-amd64
     name: debian