diff --git a/PVE/API2/Storage/Content.pm b/PVE/API2/Storage/Content.pm
index 8ff858d..41b577c 100644
--- a/PVE/API2/Storage/Content.pm
+++ b/PVE/API2/Storage/Content.pm
@@ -456,9 +456,8 @@ __PACKAGE__->register_method ({
 	    print "Removed volume '$volid'\n";
 	    if ($vtype eq 'backup'
 		&& $path =~ /(.*\/vzdump-\w+-\d+-\d{4}_\d{2}_\d{2}-\d{2}_\d{2}_\d{2})[^\/]+$/) {
-		my $logpath = "$1.log";
-		# try to cleanup our backup log file too, if still existing, #318
-		unlink($logpath) if -e $logpath;
+		# Remove log file #318 and notes file #3972 if they still exist
+		PVE::Storage::archive_auxiliaries_remove($path);
 	    }
 	};
 
diff --git a/PVE/Storage.pm b/PVE/Storage.pm
index 72458cf..70dd663 100755
--- a/PVE/Storage.pm
+++ b/PVE/Storage.pm
@@ -1566,6 +1566,7 @@ sub archive_info {
 
 	if ($volid =~ /^(vzdump-${type}-([1-9][0-9]{2,8})-(\d{4})_(\d{2})_(\d{2})-(\d{2})_(\d{2})_(\d{2}))\.${extension}$/) {
 	    $info->{logfilename} = "$1.log";
+	    $info->{notesfilename} = "$filename.notes";
 	    $info->{vmid} = int($2);
 	    $info->{ctime} = timelocal($8, $7, $6, $5, $4 - 1, $3);
 	    $info->{is_std_name} = 1;
@@ -1585,16 +1586,23 @@ sub archive_remove {
     die "cannot remove protected archive '$archive_path'\n"
 	if -e protection_file_path($archive_path);
 
-    my $dirname = dirname($archive_path);
-    my $archive_info = eval { archive_info($archive_path) } // {};
-    my $logfn = $archive_info->{logfilename};
-
     unlink $archive_path or die "removing archive $archive_path failed: $!\n";
 
-    if (defined($logfn)) {
-	my $logpath = "$dirname/$logfn";
-	if (-e $logpath) {
-	    unlink $logpath or warn "removing log file $logpath failed: $!\n";
+    archive_auxiliaries_remove($archive_path);
+}
+
+sub archive_auxiliaries_remove {
+    my ($archive_path) = @_;
+
+    my $dirname = dirname($archive_path);
+    my $archive_info = eval { archive_info($archive_path) } // {};
+
+    for my $type (qw(log notes)) {
+	my $filename = $archive_info->{"${type}filename"} or next;
+	my $path = "$dirname/$filename";
+
+	if (-e $path) {
+	    unlink $path or warn "Removing $type file failed: $!\n";
 	}
     }
 }
diff --git a/test/archive_info_test.pm b/test/archive_info_test.pm
index 7e84b6a..bbc0e6f 100644
--- a/test/archive_info_test.pm
+++ b/test/archive_info_test.pm
@@ -24,6 +24,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-lxc-$vmid-3070_01_01-00_00_00.tgz",
 	    'logfilename'  => "vzdump-lxc-$vmid-3070_01_01-00_00_00.log",
+	    'notesfilename'=> "vzdump-lxc-$vmid-3070_01_01-00_00_00.tgz.notes",
 	    'type'         => 'lxc',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -39,6 +40,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-lxc-$vmid-1970_01_01-02_00_30.tgz",
 	    'logfilename'  => "vzdump-lxc-$vmid-1970_01_01-02_00_30.log",
+	    'notesfilename'=> "vzdump-lxc-$vmid-1970_01_01-02_00_30.tgz.notes",
 	    'type'         => 'lxc',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -54,6 +56,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-lxc-$vmid-2020_03_30-21_39_30.tgz",
 	    'logfilename'  => "vzdump-lxc-$vmid-2020_03_30-21_39_30.log",
+	    'notesfilename'=> "vzdump-lxc-$vmid-2020_03_30-21_39_30.tgz.notes",
 	    'type'         => 'lxc',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -69,6 +72,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-openvz-$vmid-2020_03_30-21_39_30.tgz",
 	    'logfilename'  => "vzdump-openvz-$vmid-2020_03_30-21_39_30.log",
+	    'notesfilename'=> "vzdump-openvz-$vmid-2020_03_30-21_39_30.tgz.notes",
 	    'type'         => 'openvz',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -84,6 +88,7 @@ my $tests = [
 	expected    => {
 	    'filename'     => "vzdump-qemu-$vmid-2020_03_30-21_39_30.tgz",
 	    'logfilename'  => "vzdump-qemu-$vmid-2020_03_30-21_39_30.log",
+	    'notesfilename'=> "vzdump-qemu-$vmid-2020_03_30-21_39_30.tgz.notes",
 	    'type'         => 'qemu',
 	    'format'       => 'tar',
 	    'decompressor' => ['tar', '-z'],
@@ -138,6 +143,7 @@ for my $virt (sort keys %$bkp_suffix) {
 	    expected    => {
 		'filename'     => "vzdump-$virt-$vmid-2020_03_30-21_12_40.$format.$suffix",
 		'logfilename'  => "vzdump-$virt-$vmid-2020_03_30-21_12_40.log",
+		'notesfilename'=> "vzdump-$virt-$vmid-2020_03_30-21_12_40.$format.$suffix.notes",
 		'type'         => "$virt",
 		'format'       => "$format",
 		'decompressor' => $decomp->{$suffix},