diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-311.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-311.json
deleted file mode 100755
index d77ed42ddb497bb5d57c24706dea8b1711ff86e5..0000000000000000000000000000000000000000
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-311.json
+++ /dev/null
@@ -1,56 +0,0 @@
-{
-  "architecture": {
-    "platform_type": "x86_64",
-    "smp_size": 2,
-    "smt_size": 2
-  },
-  "main_memory": {
-    "ram_size": 2147483648,
-    "virtual_size": null
-  },
-  "network_adapters": [
-    {
-      "enabled": true,
-      "interface": "Ethernet",
-      "rate": 1000000000
-    },
-    {
-      "enabled": false,
-      "interface": "Ethernet",
-      "rate": 1000000000
-    },
-    {
-      "enabled": true,
-      "interface": "Myri-10G",
-      "rate": 10000000000,
-      "vendor": "Myrinet",
-      "version": "10G-PCIE-8A-C"
-    }
-  ],
-  "operating_system": {
-    "name": null,
-    "release": null,
-    "version": null
-  },
-  "processor": {
-    "cache_l1": null,
-    "cache_l1d": null,
-    "cache_l1i": null,
-    "cache_l2": 1048576,
-    "clock_speed": 2400000000.0,
-    "instruction_set": "",
-    "model": "AMD Opteron",
-    "other_description": "",
-    "vendor": "AMD",
-    "version": "250"
-  },
-  "storage_devices": [
-    {
-      "driver": null,
-      "interface": "SATA",
-      "size": 74505805969.2383
-    }
-  ],
-  "type": "node",
-  "uid": "gdx-311"
-}
\ No newline at end of file
diff --git a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-312.json b/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-312.json
deleted file mode 100755
index be83b357e0c2cbcb413664abf560671bc25a7924..0000000000000000000000000000000000000000
--- a/data/grid5000/sites/orsay/clusters/gdx/nodes/gdx-312.json
+++ /dev/null
@@ -1,56 +0,0 @@
-{
-  "architecture": {
-    "platform_type": "x86_64",
-    "smp_size": 2,
-    "smt_size": 2
-  },
-  "main_memory": {
-    "ram_size": 2147483648,
-    "virtual_size": null
-  },
-  "network_adapters": [
-    {
-      "enabled": true,
-      "interface": "Ethernet",
-      "rate": 1000000000
-    },
-    {
-      "enabled": false,
-      "interface": "Ethernet",
-      "rate": 1000000000
-    },
-    {
-      "enabled": true,
-      "interface": "Myri-10G",
-      "rate": 10000000000,
-      "vendor": "Myrinet",
-      "version": "10G-PCIE-8A-C"
-    }
-  ],
-  "operating_system": {
-    "name": null,
-    "release": null,
-    "version": null
-  },
-  "processor": {
-    "cache_l1": null,
-    "cache_l1d": null,
-    "cache_l1i": null,
-    "cache_l2": 1048576,
-    "clock_speed": 2400000000.0,
-    "instruction_set": "",
-    "model": "AMD Opteron",
-    "other_description": "",
-    "vendor": "AMD",
-    "version": "250"
-  },
-  "storage_devices": [
-    {
-      "driver": null,
-      "interface": "SATA",
-      "size": 74505805969.2383
-    }
-  ],
-  "type": "node",
-  "uid": "gdx-312"
-}
\ No newline at end of file