diff --git a/weed/storage/backend/disk_file.go b/weed/storage/backend/disk_file.go
index cd5207356..eced68012 100644
--- a/weed/storage/backend/disk_file.go
+++ b/weed/storage/backend/disk_file.go
@@ -81,5 +81,6 @@ func (df *DiskFile) Name() string {
 }
 
 func (df *DiskFile) Sync() error {
-	return df.File.Sync()
+	return nil
+	// return df.File.Sync()
 }