diff --git a/Filer-Store-Replication.md b/Filer-Store-Replication.md
index 86e10e7..729b57f 100644
--- a/Filer-Store-Replication.md
+++ b/Filer-Store-Replication.md
@@ -5,9 +5,11 @@
 
 # Use Cases
 
-For filer stores using shared filer stores, such as shared Mysql/Postgres/Cassandra/Redis/etc in [[Filer-Stores]], this is not really needed, since all filers are stateless.
+For filer stores using shared filer stores, such as shared Mysql/Postgres/Cassandra/Redis/ElasticSearch/etc in [[Filer-Stores]], this is not really needed, since all filers are stateless, and there are no need to replicate the meta data back to the same filer store.
 
-But if each filer has its own filer store, usually with the default local leveldb, or even with a dedicated Mysql/Postgres/Cassandra/Redis/etc store, this would be very useful.
+But if each filer has its own filer store, usually with the default local Leveldb, or even with a dedicated Mysql/Postgres/Cassandra/Redis/etc store, this would be very useful.
+
+Sometimes you may want to replicate the existing store to a new filer store, or move to a new filer store, this would also be useful.
 
 # One-Directional Replication