WHATS_NEW                 | 4 ++++

 lib/metadata/raid_manip.c | 5 +++++

 2 files changed, 9 insertions(+)

diff --git a/WHATS_NEW b/WHATS_NEW

index 977e578..5cbf4ec 100644

--- a/WHATS_NEW

+++ b/WHATS_NEW

@@ -1,3 +1,7 @@

+Version 2.02.167 - 

+======================================

+  Disable lvconvert of thin pool to raid while active.

+

 Version 2.02.166 - 26th September 2016

 ======================================

   Fix lvm2-activation-generator to read all LVM2 config sources. (2.02.155)

diff --git a/lib/metadata/raid_manip.c b/lib/metadata/raid_manip.c

index e5fdf4f..5fc520e 100644

--- a/lib/metadata/raid_manip.c

+++ b/lib/metadata/raid_manip.c

@@ -776,6 +776,11 @@ static int _raid_add_images_without_commit(struct logical_volume *lv,

 		return 0;

 	}

+	if (lv_is_active(lv_lock_holder(lv)) && (old_count == 1) && (lv_is_thin_pool_data(lv) || lv_is_thin_pool_metadata(lv))) {

+		log_error("Can't add image to active thin pool LV %s yet. Deactivate first.", display_lvname(lv));

+		return 0;

+	}

+

 	if (!archive(lv->vg))

 		return_0;