From 5cf8888976118cfbc44da28462ebaf9aae3927d7 Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <zkabelac@redhat.com>
Date: Thu, 24 Jan 2019 16:12:04 +0100
Subject: [PATCH] man: lvmvdo component activation description

Describe component activation for VDO Data LV.
---
 man/lvmvdo.7_main | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/man/lvmvdo.7_main b/man/lvmvdo.7_main
index ae507df94..2572b465e 100644
--- a/man/lvmvdo.7_main
+++ b/man/lvmvdo.7_main
@@ -260,6 +260,21 @@ a long time.
 # lvresize -L200G vg/vdo2
 .fi
 
+.SS 5. Component activation of VDODataLV
+
+VDODataLV can be activated separately as component LV for examination
+purposes. It activates data LV in read-only mode and cannot be modified.
+If the VDODataLV is active as component, any upper LV using this volume CANNOT
+be activated. User has to deactivate VDODataLV first to continue to use VDOPoolLV.
+
+.I Example
+.br
+.nf
+# lvchange -ay vg/vpool0_vdata
+# lvchange -an vg/vpool0_vdata
+.fi
+
+
 .SH VDO Topics
 .br