diff --git a/data/grid5000/sites/lyon/network_equipments/force10.json b/data/grid5000/sites/lyon/network_equipments/force10.json
index c10174110059c913d7e8492b1955800ad86ac280..85a3b52164df2902b340cea8e0c6d548126e03bb 100644
--- a/data/grid5000/sites/lyon/network_equipments/force10.json
+++ b/data/grid5000/sites/lyon/network_equipments/force10.json
@@ -294,14 +294,8 @@
           "uid": "nova-23"
         },
         {
-          "kind": "server",
-          "snmp_name": "TenGigabitEthernet 0/48",
-          "uid": "castor"
         },
         {
-          "kind": "server",
-          "snmp_name": "TenGigabitEthernet 0/49",
-          "uid": "pollux"
         },
         {
           "kind": "server",
@@ -345,4 +339,4 @@
   "type": "network_equipment",
   "uid": "force10",
   "warranty": "2017-07-01"
-}
\ No newline at end of file
+}
diff --git a/data/grid5000/sites/lyon/servers/castor.json b/data/grid5000/sites/lyon/servers/castor.json
deleted file mode 100644
index 7c4e0c2641522804d3c9e15b9cb5347bad9ef143..0000000000000000000000000000000000000000
--- a/data/grid5000/sites/lyon/servers/castor.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  "alias": [
-
-  ],
-  "kind": "physical",
-  "network_adapters": {
-    "adm": {
-      "ip": "172.17.63.1"
-    },
-    "bmc": {
-      "ip": "172.17.62.1"
-    },
-    "default": {
-      "ip": "172.16.63.1"
-    }
-  },
-  "serial": "4T1JD5J",
-  "type": "server",
-  "uid": "castor",
-  "warranty": "2017-07"
-}
\ No newline at end of file
diff --git a/data/grid5000/sites/lyon/servers/pollux.json b/data/grid5000/sites/lyon/servers/pollux.json
deleted file mode 100644
index e11eee24577752cadd27077daaae923a23b17978..0000000000000000000000000000000000000000
--- a/data/grid5000/sites/lyon/servers/pollux.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  "alias": [
-
-  ],
-  "kind": "physical",
-  "network_adapters": {
-    "adm": {
-      "ip": "172.17.63.2"
-    },
-    "bmc": {
-      "ip": "172.17.62.2"
-    },
-    "default": {
-      "ip": "172.16.63.2"
-    }
-  },
-  "serial": "3T1JD5J",
-  "type": "server",
-  "uid": "pollux",
-  "warranty": "2017-07"
-}
\ No newline at end of file
diff --git a/input/grid5000/sites/lyon/networks/force10.yaml b/input/grid5000/sites/lyon/networks/force10.yaml
index bb8fcfb19fa8a4f7955a2ccac184353f9165f8ce..09fa625e8001db7f1b4e7da891fc7a30e814d3a2 100644
--- a/input/grid5000/sites/lyon/networks/force10.yaml
+++ b/input/grid5000/sites/lyon/networks/force10.yaml
@@ -71,12 +71,6 @@ force10:
         45: nova-21
         46: nova-22
         47: nova-23
-        48:
-          uid: castor
-          kind: server
-        49:
-          uid: pollux
-          kind: server
         50:
           uid: procyon
           kind: server
diff --git a/input/grid5000/sites/lyon/servers/servers.yaml b/input/grid5000/sites/lyon/servers/servers.yaml
index 9b72f18b2eb5813a197e39448d027c89f0cb5406..79defd21c5c83fb1ad039db447d9953158a67bd0 100644
--- a/input/grid5000/sites/lyon/servers/servers.yaml
+++ b/input/grid5000/sites/lyon/servers/servers.yaml
@@ -11,32 +11,6 @@ cyrrus:
     bmc:
       ip: 172.17.62.3
 
-castor:
-  kind: physical
-  alias: []
-  warranty: 2017-07
-  serial: 4T1JD5J
-  network_adapters:
-    default:
-      ip: 172.16.63.1
-    adm:
-      ip: 172.17.63.1
-    bmc:
-      ip: 172.17.62.1
-
-pollux:
-  kind: physical
-  alias: []
-  warranty: 2017-07
-  serial: 3T1JD5J
-  network_adapters:
-    default:
-      ip: 172.16.63.2
-    adm:
-      ip: 172.17.63.2
-    bmc:
-      ip: 172.17.62.2
-
 albireo-a:
   kind: physical
   alias: [srv1]