From c21af671d654fa506bc949bba6df8eeb9b1ffdeb Mon Sep 17 00:00:00 2001
From: wanyaoqi <18528551+wanyaoqi@users.noreply.github.com>
Date: Mon, 23 Mar 2026 19:01:21 +0800
Subject: [PATCH] fix(host): dd zero to lv wife partitions on lvremove (#24527)

---
 pkg/hostman/storageman/lvmutils/lvmutils.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkg/hostman/storageman/lvmutils/lvmutils.go b/pkg/hostman/storageman/lvmutils/lvmutils.go
index 8287c8dce0..8042ca5f96 100644
--- a/pkg/hostman/storageman/lvmutils/lvmutils.go
+++ b/pkg/hostman/storageman/lvmutils/lvmutils.go
@@ -20,6 +20,7 @@ import (
 	"strconv"
 	"strings"
 
+	"yunion.io/x/log"
 	"yunion.io/x/pkg/errors"
 
 	"yunion.io/x/onecloud/pkg/util/procutils"
@@ -242,6 +243,10 @@ func LvResize(vg, lvPath string, size int64) error {
 
 // @param: lvPath string: should like /dev/<vg>/<lv>
 func LvRemove(lvPath string) error {
+	if out, err := procutils.NewCommand("dd", "if=/dev/zero", fmt.Sprintf("of=%s", lvPath), "bs=10M", "count=16").Output(); err != nil {
+		log.Errorf("failed dd zero to lv %s: %s %s", lvPath, out, err)
+	}
+
 	out, err := procutils.NewRemoteCommandAsFarAsPossible("lvm", "lvremove", lvPath, "-y").Output()
 	if err != nil {
 		return errors.Wrapf(err, "LvRemove failed %s", out)