From: Rishabh Dave <ridave@redhat.com>
Date: Fri, 8 Nov 2019 07:04:27 +0000 (+0530)
Subject: ceph-volume: use fsync for dd command
X-Git-Tag: v13.2.9~117^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F31552%2Fhead;p=ceph.git

ceph-volume: use fsync for dd command

fsync makes sure that data and metadata is actually written to device
being zapped before finishing.

Fixes: https://tracker.ceph.com/issues/39156
Signed-off-by: Rishabh Dave <ridave@redhat.com>
(cherry picked from commit 060f54960c3d2d800b28525ba8774a60578f67a8)
---

diff --git a/src/ceph-volume/ceph_volume/devices/lvm/zap.py b/src/ceph-volume/ceph_volume/devices/lvm/zap.py
index bca32ac88339..6e60614088d0 100644
--- a/src/ceph-volume/ceph_volume/devices/lvm/zap.py
+++ b/src/ceph-volume/ceph_volume/devices/lvm/zap.py
@@ -66,6 +66,7 @@ def zap_data(path):
         'of={path}'.format(path=path),
         'bs=1M',
         'count=10',
+        'conv=fsync'
     ])