diff --git a/backup_archive_fnct_FRA.sh b/backup_archive_fnct_FRA.sh
index fbb1399..705228f 100644
--- a/backup_archive_fnct_FRA.sh
+++ b/backup_archive_fnct_FRA.sh
@@ -31,5 +31,13 @@ fra_usage=$(sqlplus -s '/ as sysdba' << EOF
 EOF
 ) 
 
-echo ${fra_usage} | egrep -o "[0-9]*"
+pct_fra_used=$(echo ${fra_usage} | egrep -o "[0-9]*")
+
+if [ ${pct_fra_used} gt 85 ]
+then
+    echo ${pct_fra_used} : backup des archivelog necessaire
+else
+    echo ${pct_fra_used} : backup des archivelog NON necessaire
+fi
+