# Pastebin pmM2Hjdq
diff --git a/includes/discovery/ucd-diskio.inc.php b/includes/discovery/ucd-diskio.inc.php
index 6d45fc2..987fade 100644
--- a/includes/discovery/ucd-diskio.inc.php
+++ b/includes/discovery/ucd-diskio.inc.php
@@ -7,7 +7,7 @@ if (is_array($diskio_array)) {
         if ($entry['diskIONRead'] > '0' || $entry['diskIONWritten'] > '0') {
             d_echo("$index ".$entry['diskIODevice']."\n");

-            if (dbFetchCell('SELECT COUNT(*) FROM `ucd_diskio` WHERE `device_id` = ? AND `diskio_index` = ?', array($device['device_id'], $index)) == '0') {
+            if (dbFetchCell('SELECT COUNT(*) FROM `ucd_diskio` WHERE `device_id` = ? AND `diskio_index` = ?, `diskio_descr` = ?', array($device['device_id'], $index, $entry['diskIODevice'])) == '0') {
                 $inserted = dbInsert(array('device_id' => $device['device_id'], 'diskio_index' => $index, 'diskio_descr' => $entry['diskIODevice']), 'ucd_diskio');
                 echo '+';
                 d_echo($sql." - $inserted inserted ");