diff --git a/nettoyer_quotas.sh b/nettoyer_quotas.sh
index 3eba79e..c0d2ee2 100755
--- a/nettoyer_quotas.sh
+++ b/nettoyer_quotas.sh
@@ -1,34 +1,39 @@
 #!/bin/bash
 #find /mnt/dumps -mtime +30 -print
-# ce scrip efface les vieux dumps de la base de données.
+# This script removes old database dumps.
 PURGEPATH=/mnt/dumps
 cd $PURGEPATH
 OLD_IFS="$IFS"
  
+# We want to keep 5 Go free (unit: kB)
+minfree=5000000
+# We want to keep 30 dumps max (min is 2)
+maxkeep=30
+
+count=$(ls | wc -l)
+count_removed=0
+
 IFS=$(echo -en "\n\b")
 for file in `ls -rt`
 do
         IFS="$OLD_IFS"
-        # en Ko
-        espace_libre=`df -P "$PURGEPATH" | grep "$PURGEPATH" | head -n 1 | awk 'BEGIN{FS=" "} {print $4}'`
-        # We want to keep 5 Go free
-        if [ "$espace_libre" -lt 5000000 ] 
+        # unit: KB
+        free_space=`df -P "$PURGEPATH" | grep "$PURGEPATH" | head -n 1 | awk 'BEGIN{FS=" "} {print $4}'`
+        if [ $(( $count - $count_removed )) -gt $(( $maxkeep - 2 )) ]
         then
             rm -rf -- "$file" && echo "Removed $file"
+            count_removed=$(( $count_removed + 1 ))
+        elif [ "$free_space" -lt $minfree ] 
+        then
+            rm -rf -- "$file" && echo "Removed $file"
+            count_removed=$(( $count_removed + 1 ))
         else
             echo "Enough free space retrieved"
             break
         fi
-       # etc
-       # il faut faire attention, la valeur de l'IFS n'étant pas celle par défaut, certaines choses
-       # ne fonctionneront pas si tu fais des choses compliquées dans ta boucle, tu seras probablement
-       # obligé de restaurer/effacer la valeur d'IFS à chaque itération.
         sleep 1
         IFS=$(echo -en "\n\b")
 done
-echo "$espace_libre Ko free on $PURGEPATH"
+echo "$free_space KB free on $PURGEPATH"
  
 IFS="$OLD_IFS"
- 
-#suite du script
-
diff --git a/start_or_update.sh b/start_or_update.sh
index 1b15bf2..98e6159 100755
--- a/start_or_update.sh
+++ b/start_or_update.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
-test -f ~/secrets.tar.gz.enc || curl -o ~/secrets.tar.gz.enc https://cloud.scimetis.net/s/$KEY/download
-openssl enc -aes-256-cbc -d -in ~/secrets.tar.gz.enc | tar -zxv --strip 2 secrets/docker-mysql-stack/crontab secrets/docker-mysql-stack/debian.cnf
+test -z $1 || HOST="_$1"
+test -z $2 || INSTANCE="_$2"
+test -f ~/secrets.tar.gz.enc || curl -o ~/secrets.tar.gz.enc "https://cloud.scimetis.net/s/${KEY}/download?path=%2F&files=secrets.tar.gz.enc"
+openssl enc -aes-256-cbc -d -in ~/secrets.tar.gz.enc | tar -zxv --strip 2 secrets/docker-mysql-stack${HOST}${INSTANCE}/crontab secrets/docker-mysql-stack${HOST}${INSTANCE}/debian.cnf
 sudo chown root. crontab debian.cnf
 sudo chmod 644 crontab
 # --force-recreate is used to recreate container when crontab file has changed