diff --git a/dicos/29_one-master.xml b/dicos/29_one-master.xml
index 646e233..94807fe 100644
--- a/dicos/29_one-master.xml
+++ b/dicos/29_one-master.xml
@@ -27,6 +27,9 @@
             </variable>
         </family>
         <family name='Virtualisation' icon='cloud'>
+            <variable name='one_cluster_name' type='string' description="Nom de la grappe OpenNebula par défaut" mode='expert'>
+                <value>default</value>
+            </variable>
             <variable name='vnet_pilote' type='string'  description='Pilote utilisé pour le réseau virtuel' hidden='True' />
             <variable name='vnets'             type='string'  description="Nom du réseau virtuel à plage d'adresse IP" multi='True'/>
             <variable name='vnet_range_start'  type='ip'      description='Première IP de la plage' mandatory="True"/>
diff --git a/postservice/30-one-mng b/postservice/30-one-mng
index 2fff9d6..c75507c 100755
--- a/postservice/30-one-mng
+++ b/postservice/30-one-mng
@@ -21,44 +21,35 @@ function get_one_auth()
     ${CMD} ${FILE}
 }
 
-# ref https://dev-eole.ac-dijon.fr/issues/16797
-#function check_cluster()
-#{
-#    name="${1}"
-#    cmd="onecluster"
-#    opt="list"
-#    auth=$(get_one_auth)
-#
-#    res=0
-#    clst_list=$(${cmd} ${opt} --user ${auth%:*} --password ${auth#*:} | tail -n +2 |  awk -F ' ' '{print $2}')
-#    for hst in ${clst_list}
-#    do
-#        [[ "${NAME}" = "${hst}" ]] && res=$((res+1))
-#    done
-#    return ${res}
-#}
+function check_default_cluster()
+{
+   name="${1}"
+   cmd="onecluster show 0"
+   auth=$(get_one_auth)
 
-# ref https://dev-eole.ac-dijon.fr/issues/16797
-#function manage_cluster()
-#{
-#    NAME="${1}"
-#    CMD="onecluster create"
-#    AUTH=$(get_one_auth)
-#
-#    check_cluster ${clst_name}
-#    if [[ ${?} -eq 0 ]]
-#    then
-#        crt=$(${CMD} --user ${AUTH%:*} --password ${AUTH#*:} ${NAME})
-#        if [[ ${?} -ne 0 ]]
-#        then
-#            error "Cluster create failed"
-#        else
-#            echo "Cluster ${NAME} created"
-#        fi
-#    else
-#        echo "Cluster \"${NAME}\" already exist"
-#    fi
-#}
+   DEFAULT_NAME=$(${cmd} --user ${auth%:*} --password ${auth#*:} | awk '/^NAME/ {print $3}')
+   [[ "${name}" = "${DEFAULT_NAME}" ]]
+}
+
+function rename_default_cluster()
+{
+   NAME="${1}"
+   CMD="onecluster rename 0 ${NAME}"
+   AUTH=$(get_one_auth)
+
+   if ! check_default_cluster "${NAME}"
+   then
+
+       if ${CMD} --user ${AUTH%:*} --password ${AUTH#*:}
+       then
+           echo "The default cluster name is now '${NAME}'"
+       else
+           error "The default cluster can not be renamed"
+       fi
+   else
+       echo "The default cluster name is already \"${NAME}\""
+   fi
+}
 
 function check_host()
 {
@@ -437,10 +428,9 @@ function manage_datastores()
 function main()
 {
     #
-    # Creating Cluster
-    # ref https://dev-eole.ac-dijon.fr/issues/16797
-    #clst_name=$(CreoleGet one_cluster_name)
-    #manage_cluster ${clst_name}
+    # Rename default cluster
+    clst_name=$(CreoleGet one_cluster_name)
+    rename_default_cluster "${clst_name}"
 
 	# Wait 4 seconds for service (ref #16848)
 	sleep 4
@@ -457,12 +447,12 @@ function main()
     #
     # Attaching Host to the Cluster
     #
-    attach_host ${host} "default"
+    attach_host ${host} "${clst_name}"
 
     #
     # Création des Datastores
     #
-    manage_datastores ${clst_name}
+    manage_datastores "${clst_name}"
 }
 
 main
diff --git a/postservice/31-one-netmng b/postservice/31-one-netmng
index 5092638..4a2ef90 100755
--- a/postservice/31-one-netmng
+++ b/postservice/31-one-netmng
@@ -289,9 +289,7 @@ def main():
     client = CreoleClient()
     one_client = OneClient('oneadmin')
     networks = []
-    # ref https://dev-eole.ac-dijon.fr/issues/16797
-    # cluster = client.get_creole('one_cluster_name')
-    cluster = "default"
+    cluster = client.get_creole('one_cluster_name')
     swname = client.get_creole('ovs_sw_name')
     zones = client.get_creole('vnets')
     vlans = client.get_creole('vnet_vlan_tag')
diff --git a/scripts/onehost_create_all b/scripts/onehost_create_all
index d26d72c..44961d6 100755
--- a/scripts/onehost_create_all
+++ b/scripts/onehost_create_all
@@ -34,9 +34,7 @@ EOF
 #
 function register_node()
 {
-	# ref https://dev-eole.ac-dijon.fr/issues/16797
-    #cmd="onehost create -i kvm -v kvm -n ovswitch -c \"$(CreoleGet one_cluster_name)\" ${1}"
-    cmd="onehost create -i kvm -v kvm -c \"default\" ${1}"
+    cmd="onehost create -i kvm -v kvm -c 0 ${1}"
     ret=$(su - ${ONEUSER} -c -- "${cmd}")
     return $?
 }