diff --git a/pkg/pmem-device-manager/pmd-lvm.go b/pkg/pmem-device-manager/pmd-lvm.go
index 592b2fabe1..ec72579284 100644
--- a/pkg/pmem-device-manager/pmd-lvm.go
+++ b/pkg/pmem-device-manager/pmd-lvm.go
@@ -105,6 +105,15 @@ func (lvm *pmemLvm) CreateDevice(name string, size uint64, nsmode string) error
 			if _, err := pmemexec.RunCommand("lvcreate", "-L", strSz, "-n", name, vg.name); err != nil {
 				glog.Infof("lvcreate failed with error: %v, trying for next free region", err)
 			} else {
+				// clear start of device to avoid old data being recognized as file system
+				device, err := lvm.GetDevice(name)
+				if err != nil {
+					return err
+				}
+				err = clearDevice(device, false)
+				if err != nil {
+					return err
+				}
 				return nil
 			}
 		}
diff --git a/pkg/pmem-device-manager/pmd-ndctl.go b/pkg/pmem-device-manager/pmd-ndctl.go
index b93479bf87..d8799659f7 100644
--- a/pkg/pmem-device-manager/pmd-ndctl.go
+++ b/pkg/pmem-device-manager/pmd-ndctl.go
@@ -64,6 +64,15 @@ func (pmem *pmemNdctl) CreateDevice(name string, size uint64, nsmode string) err
 	}
 	data, _ := ns.MarshalJSON() //nolint: gosec
 	glog.Infof("Namespace created: %s", data)
+	// clear start of device to avoid old data being recognized as file system
+	device, err := pmem.GetDevice(name)
+	if err != nil {
+		return err
+	}
+	err = clearDevice(device, false)
+	if err != nil {
+		return err
+	}
 
 	return nil
 }