librenms-librenms/includes/discovery/ucd-diskio.inc.php

<?php

  echo("UCD Disk IO : ");
  $diskio_array = snmpwalk_cache_oid($device, "diskIOEntry", array(), "UCD-DISKIO-MIB" , "+".$config['install_dir']."/mibs/");
  $valid_diskio = array();
#  if($debug) { print_r($diskio_array); }

  if(is_array($diskio_array)) {
    foreach($diskio_array as $index => $entry) {

      if($entry['diskIONRead'] > "0" || $entry['diskIONWritten'] > "0") {
        if ($debug) { echo("$index ".$entry['diskIODevice']."\n"); }

        if (mysql_result(mysql_query("SELECT COUNT(*) FROM `ucd_diskio` WHERE `device_id` = '".$device['device_id']."' AND `diskio_index` = '".$index."'"),0) == "0")
        {
          $sql = "INSERT INTO `ucd_diskio` (`device_id`,`diskio_index`,`diskio_descr`) VALUES ('".$device['device_id']."','".$index."','".$entry['diskIODevice']."')";
          mysql_query($sql); echo("+");
          if($debug) { echo($sql . " - " . mysql_affected_rows() . "inserted "); }
        }
        else
        {
          echo(".");
          ## FIXME Need update code here!
        }

        $valid_diskio[$index] = 1;

      } ## end validity check
    } ## end array foreach
  } ## End array if


### Remove diskio entries which weren't redetected here

  $sql = "SELECT * FROM `ucd_diskio` where `device_id`  = '".$device['device_id']."'";
  $query = mysql_query($sql);

  if($debug) { print_r ($valid_vp); }

  while ($test = mysql_fetch_array($query)) {
    if($debug) { echo($test['diskio_index'] . " -> " . $test['diskio_descr'] . "\n"); }
    if(!$valid_diskio[$test['diskio_index']]) {
      echo("-");
      mysql_query("DELETE FROM `ucd_diskio` WHERE `diskio_id` = '" . $test['diskio_id'] . "'");
    }
  }

  unset($valid_diskio);
  echo("\n");


?>