diff --git a/Filer-Stores.md b/Filer-Stores.md
index 2c67698..46f3a1c 100644
--- a/Filer-Stores.md
+++ b/Filer-Stores.md
@@ -55,6 +55,12 @@ $ weed shell
 total 65 directories, 292 files
 localhost-8888-20190417-005421.meta is loaded to http://localhost:8888/
 
+# optionally, you can use concurrency to speed up the meta load process
+# -concurrency=N specifies the number of parallel meta load operations to filer
+# caution: this may not work correctly with some databases like Redis
+
+# $ weed shell
+# > fs.meta.load -concurrency=1 localhost-8888-20190417-005421.meta
 ```
 
 ### Extending Storage Options