diff --git a/plugins/dynamix/include/DeviceList.php b/plugins/dynamix/include/DeviceList.php
index cfa1b6616..39d108975 100644
--- a/plugins/dynamix/include/DeviceList.php
+++ b/plugins/dynamix/include/DeviceList.php
@@ -337,7 +337,7 @@ case 'parity':
     $status = $var['sbSyncExit'];
     $speed = ($status==0) ? my_scale($var['mdResyncSize']*1024/$duration,$unit,1)." $unit/s" : "Unavailable";
     $year = date('Y',$var['sbSynced2']);
-    file_put_contents($log,"$year $timestamp|$duration|$speed|$status\n",FILE_APPEND);
+    if ($status==0||file_exists($log)) file_put_contents($log,"$year $timestamp|$duration|$speed|$status\n",FILE_APPEND);
   }
   break;
 }
diff --git a/plugins/dynamix/include/PrepareDisks.php b/plugins/dynamix/include/PrepareDisks.php
index b438dec34..3ae4fa9ed 100644
--- a/plugins/dynamix/include/PrepareDisks.php
+++ b/plugins/dynamix/include/PrepareDisks.php
@@ -17,6 +17,7 @@ function preset($disk) {
 
 @unlink('/boot/config/smart-one.cfg');
 @unlink('/boot/config/smart-all.cfg');
+@unlink('/boot/config/plugins/dynamix/monitor.ini');
 if ($_POST['preset']) {
   $disks = parse_ini_file('/var/local/emhttp/disks.ini',true);
   $disks = array_filter($disks,'preset');
diff --git a/plugins/dynamix/scripts/monitor b/plugins/dynamix/scripts/monitor
index 40423ab0c..667b718a3 100755
--- a/plugins/dynamix/scripts/monitor
+++ b/plugins/dynamix/scripts/monitor
@@ -82,7 +82,7 @@ function read_write_parity_log($epoch,$duration,$speed,$status) {
   if (empty($line)) {
     $year = date('Y',$epoch);
     $line = "$year $timestamp|$duration|$speed|$status";
-    file_put_contents($log,"$line\n",FILE_APPEND);
+    if ($status==0||file_exists($log)) file_put_contents($log,"$line\n",FILE_APPEND);
   }
   return $line;
 }