diff --git a/architecture.md b/architecture.md
index f9949db..2982d64 100644
--- a/architecture.md
+++ b/architecture.md
@@ -34,4 +34,5 @@ Divers :
 * serveur web Apache
 * service Tomcat 9
 * EtcKeeper
-* vrms
\ No newline at end of file
+* vrms
+* rétention des logs : 3 mois
\ No newline at end of file