diff --git a/src/tm_mad/fs_lvm/clone b/src/tm_mad/fs_lvm/clone
index 65057d44cc..55a86dabe1 100755
--- a/src/tm_mad/fs_lvm/clone
+++ b/src/tm_mad/fs_lvm/clone
@@ -130,7 +130,7 @@ CLONE_CMD=$(cat <<EOF
     hostname -f >"${DST_DIR}/.host" || :
 
     # zero trailing space
-    if [ -n "${ZERO_LVM}" ]; then
+    if [ -n "${ZERO_LVM_ON_CREATE}" ]; then
     LVSIZE=\$(${SUDO} ${LVS} --nosuffix --noheadings --units B -o lv_size "${DEV}" | tr -d '[:blank:]')
     ${DD} if=/dev/zero of="${DEV}" bs=64k \
         oflag=seek_bytes iflag=count_bytes \
diff --git a/src/tm_mad/fs_lvm/delete b/src/tm_mad/fs_lvm/delete
index bce7467588..d0d1918899 100755
--- a/src/tm_mad/fs_lvm/delete
+++ b/src/tm_mad/fs_lvm/delete
@@ -78,7 +78,7 @@ EOF
 
 if [ -n "${DS_SYS_ID}" ]; then
 
-    if [ -n "${ZERO_LVM}" ]; then
+    if [ -n "${ZERO_LVM_ON_DELETE}" ]; then
         ssh_exec_and_log "$DST_HOST" "$ZERO_CMD" "Error cleaning $DST_PATH"
     fi
 
diff --git a/src/tm_mad/fs_lvm/fs_lvm.conf b/src/tm_mad/fs_lvm/fs_lvm.conf
index 545ef474e4..1ebab245e1 100644
--- a/src/tm_mad/fs_lvm/fs_lvm.conf
+++ b/src/tm_mad/fs_lvm/fs_lvm.conf
@@ -14,8 +14,12 @@
 # limitations under the License.                                             #
 #--------------------------------------------------------------------------- #
 
-# Default ZERO'ing behavior for the driver. When this variable is set the driver
-# will zero LVM space when volumes are allocated or resizes. This prevents data
-# from previous allocation to be exposed in new volumes. However this will 
-# increase the VM allocation time.
-ZERO_LVM=
+# Default ZERO'ing behavior for the driver. When these variables are set the driver
+# will zero LVM space. This prevents data from a previous allocation to be exposed
+# in new volumes. However this will increase the VM allocation time.
+#
+#  Zero LVM volumes on creation or resizing
+ZERO_LVM_ON_CREATE=yes
+
+#  Zero LVM volumes on delete, when the VM disks are disposed
+ZERO_LVM_ON_DELETE=yes
diff --git a/src/tm_mad/fs_lvm/resize b/src/tm_mad/fs_lvm/resize
index a07cbf2b3e..b152cdfb37 100755
--- a/src/tm_mad/fs_lvm/resize
+++ b/src/tm_mad/fs_lvm/resize
@@ -59,7 +59,7 @@ VG_NAME="vg-one-$DS_SYS_ID"
 DEV="/dev/${VG_NAME}/${LV_NAME}"
 
 # Get current LV size
-if [ -n "${ZERO_LVM}" ]; then
+if [ -n "${ZERO_LVM_ON_CREATE}" ]; then
 
 LVSIZE_CMD=$(cat <<EOF
     set -e -o pipefail
@@ -91,7 +91,7 @@ exclusive "${LOCK}" 120 ssh_exec_and_log "$SRC_HOST" "$RESIZE_CMD" \
         "Error resizing LV named $LV_NAME"
 
 # Zero additional space
-if [ -n "${ZERO_LVM}" ]; then
+if [ -n "${ZERO_LVM_ON_CREATE}" ]; then
 ZERO_CMD=$(cat <<EOF
     set -e -o pipefail