diff --git a/Customize-Filer-Store.md b/Customize-Filer-Store.md
new file mode 100644
index 0000000..e98985a
--- /dev/null
+++ b/Customize-Filer-Store.md
@@ -0,0 +1,53 @@
+It is fairly easy if you need to store filer metadata with other data store.
+
+Let's use "yourstore" as the chosen name.
+
+Here are the steps:
+1. Add a package under github.com/chrislusf/seaweedfs/weed/filer2/yourstore
+2. Implement the filer2.FilerStore interface
+```
+package filer2
+
+import (
+	"errors"
+)
+
+type FilerStore interface {
+	// GetName gets the name to locate the configuration in filer.toml file
+	GetName() string
+	// Initialize initializes the file store
+	Initialize(configuration Configuration) error
+	InsertEntry(*Entry) error
+	UpdateEntry(*Entry) (err error)
+	FindEntry(FullPath) (entry *Entry, err error)
+	DeleteEntry(FullPath) (err error)
+	ListDirectoryEntries(dirPath FullPath, startFileName string, includeStartFile bool, limit int) ([]*Entry, error)
+}
+
+```
+
+3. Remember to add yourstore to the list of supported stores
+```
+func init() {
+	filer2.Stores = append(filer2.Stores, &YourStore{})
+}
+```
+4. Load yourstore. Just import it in  github.com/chrislusf/seaweedfs/weed/server/filer_server.go
+```
+import (
+	"net/http"
+	"strconv"
+	"github.com/chrislusf/seaweedfs/weed/filer2"
+	_ "github.com/chrislusf/seaweedfs/weed/filer2/cassandra"
+	_ "github.com/chrislusf/seaweedfs/weed/filer2/leveldb"
+	_ "github.com/chrislusf/seaweedfs/weed/filer2/memdb"
+	_ "github.com/chrislusf/seaweedfs/weed/filer2/mysql"
+	_ "github.com/chrislusf/seaweedfs/weed/filer2/postgres"
+	_ "github.com/chrislusf/seaweedfs/weed/filer2/redis"
+	_ "github.com/chrislusf/seaweedfs/weed/filer2/yourstore"
+        // ^^ add here
+	"github.com/chrislusf/seaweedfs/weed/security"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+)
+```
+5. Send a pull request!
diff --git a/Distributed-Filer.md b/Distributed-Filer.md
index c124f45..b2ca48d 100644
--- a/Distributed-Filer.md
+++ b/Distributed-Filer.md
@@ -16,12 +16,12 @@ For production, you would want to set replication_factor to 3
 if there are at least 3 Cassandra servers.
 
 ```cql
-create keyspace seaweed WITH replication = {
+create keyspace seaweedfs WITH replication = {
   'class':'SimpleStrategy',
   'replication_factor':1
 };
 
-use seaweed;
+use seaweedfs;
 
 CREATE TABLE filemeta (
   directory varchar,
diff --git a/Filer.md b/Filer.md
index 1a5298a..c7673de 100644
--- a/Filer.md
+++ b/Filer.md
@@ -108,17 +108,6 @@ curl "http://localhost:8888/path/to/sources/?pretty=y"
 curl "http://localhost:8888/path/to/sources/?lastFileName=abc.txt&limit=50&pretty=y"
 ```
 
-## Mount the filer
-
-On Mac, you would need to install [FUSE for macOS](https://osxfuse.github.io/)
-
-```
-weed mount -dir some_directory
-```
-After mounting, the directory will act just as a local directory.
-
-The "weed mount" is well optimized. Only the file metadata is stored on filer server. The actual file contents are all read from and write to directly the volume servers.
-
 ## Upgrading from previous Filer storage
 Upgrading is complicated since the storage format is very different.
 
diff --git a/_Sidebar.md b/_Sidebar.md
index 5728821..8984de8 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -16,6 +16,7 @@
   * [[Distributed Filer]]
   * [[Filer Commands and Operations]]
   * [[Mount]]
+  * [[Customize Filer Store]]
 * Use Cases
   * [[Use Cases]]
   * [[Actual Users]]