diff --git a/data/grid5000/sites/grenoble/servers/backupg5k.json b/data/grid5000/sites/grenoble/servers/backupg5k.json
new file mode 100644
index 0000000000000000000000000000000000000000..36b5064aabee79e1e4e22a983dac17c04ad35b2f
--- /dev/null
+++ b/data/grid5000/sites/grenoble/servers/backupg5k.json
@@ -0,0 +1,10 @@
+{
+  "kind": "virtual",
+  "network_adapters": {
+    "default": {
+      "ip": "172.16.31.144"
+    }
+  },
+  "type": "server",
+  "uid": "backupg5k"
+}
\ No newline at end of file
diff --git a/input/grid5000/sites/grenoble/servers/virtual.yaml b/input/grid5000/sites/grenoble/servers/virtual.yaml
index 2bb5218c0e0b6305c95a8aaa4120e6ec222526ec..a1404def869279fe3a258bf1da759206e91193f8 100644
--- a/input/grid5000/sites/grenoble/servers/virtual.yaml
+++ b/input/grid5000/sites/grenoble/servers/virtual.yaml
@@ -87,3 +87,8 @@ guix:
   network_adapters:
     default:
       ip: 172.16.31.128
+backupg5k:
+  kind: virtual
+  network_adapters:
+    default:
+      ip: 172.16.31.144