diff --git a/Async-Filer-Metadata-Backup.md b/Async-Filer-Metadata-Backup.md
index fe692fc..8117051 100644
--- a/Async-Filer-Metadata-Backup.md
+++ b/Async-Filer-Metadata-Backup.md
@@ -11,17 +11,33 @@ With `-peers` option, if the filers are not sharing the same filer metadata stor
 
 See https://github.com/chrislusf/seaweedfs/wiki/Filer-Store-Replication#file-store-replication
 
-# Async filer metadata backup to a remote store
+# Async filer metadata backup to a different store
 
-We can also continuously backup filer metadata to a remote store, without running a filer instance.
+We can also continuously backup filer metadata to a different store, without running a filer instance.
 ```
          Metadata Changes
- Filer --------------------> `weed filer.meta.backup` ---> Remote Store(LevelDB/RocksDB/
+ Filer --------------------> `weed filer.meta.backup` ---> A backup store(LevelDB/RocksDB/
                                                                         Mysql/Postgres/
                                                                         Redis/Cassanra/...)
 ```
-Just need to configure the remote store the same way as `filer.toml`.
+Just need to configure the backup store the same way as `filer.toml`.
 
-`weed filer.meta.backup` can be stopped and resumed. The metadata backup progress is tracked in the remote store itself. So you can pause/resume any time, and even resume from a separate machine.
+`weed filer.meta.backup` can be stopped and resumed. The metadata backup progress is tracked in the backup store itself. So you can pause/resume any time.
 
-It is worth noting that the remote store can be different from the source filer store. E.g., you can use a cheaper on disk LevelDB as a remote store to backup Redis.
+It is worth noting that the backup store can be different from the source filer store. E.g., you can use a cheaper on disk LevelDB as a remote store to backup Redis.
+
+```
+         Metadata Changes
+ Filer --------------------> `weed filer.meta.backup` ---> A backup store(LevelDB)
+on Redis
+
+```
+
+You can even do this:
+
+```
+         Metadata Changes                                                           sqlite streaming  
+ Filer --------------------> `weed filer.meta.backup` ---> A backup store(Sqlite)  ------------------> S3
+on Redis
+
+```