Eradicate is file checks for our rrds (leave them for nfsen and collectd)

html/includes/graphs/application/mysql_myisam_indexes.inc.php

@@ -12,7 +12,7 @@ $array = array(
          );
 
 $i = 0;
-if (is_file($rrd_filename)) {
+if (rrdtool_check_rrd_exists($rrd_filename)) {
     foreach ($array as $ds => $vars) {
     $rrd_list[$i]['filename'] = $rrd_filename;
         if (is_array($vars)) {