From 3a2cc5c66ee6dea71f50871d96fc3756c0d02f46 Mon Sep 17 00:00:00 2001
From: Dietmar Maurer <dietmar@proxmox.com>
Date: Fri, 8 Jan 2021 19:01:38 +0100
Subject: [PATCH] tape: minor docu update in retention policy

---
 docs/tape-backup.rst | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/docs/tape-backup.rst b/docs/tape-backup.rst
index d2c2f275..bc6a1bbd 100644
--- a/docs/tape-backup.rst
+++ b/docs/tape-backup.rst
@@ -418,7 +418,9 @@ one media pool, so a job only uses tapes from that pool.
 
 .. topic:: Retention Policy
 
-   Defines how long we want to keep the data.
+   Defines how long we want to keep the data. Retention period starts
+   with the existence of a newer media set, e.g. when the allocation
+   policy calendar event triggers.
 
    - Always overwrite media.