fix msterDisk bug

app/UI/Disk/Providers/DiskProvider.php

@@ -167,6 +167,9 @@ class DiskProvider extends BaseDataProvider implements ClientArea
             if($hd->isMaster()){
                 continue;
             }
+            if($hd->getName() == 'disk-0'){
+                continue;
+            }
             if(preg_match('/unused/', $hd->getId())){
                 $hd->delete();
                 break;