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+## Requirements
+Writes to SeaweedFS can configure most storage options, such as Collection, Replication, TTL, etc. However, you may want to configure these storage options on the filer side.
+
+For example, an administrator can create a `/scratch/` directory, configured so that anything written to it is automatically given a 7-day TTL. This directory could be used to store things like CI build artifacts, and it would naturally roll off old files without any intervention.
+
+This could also be used to implement a system-wide "trash can" (e.g. all deletes move objects to the trash and apply a TTL to them).
+
+## How it works
+On filer, there is one special file, `/etc/filer.conf`. It has all the path-specific configurations.
+
+All filers will read this configuration and apply the storage option based on the write target file path.
+
+## How to configure
+
+Here is an example of using `weed shell`. You can also write the `/etc/filer.conf` file directly. All filers will reload this file if it is changed.
+
+```
+$ weed shell
+
+# fs.configure will display current filer.conf content
+> fs.configure
+
+# add a location specific collection setting
+> fs.configure -locationPrefix=/tests/ -collection=special
+locations: <
+  location_prefix: "/tests/"
+  collection: "special"
+>
+
+# save the above setting
+> fs.configure -locationPrefix=/tests/ -collection=special -apply
+locations: <
+  location_prefix: "/tests/"
+  collection: "special"
+>
+> fs.configure
+locations: <
+  location_prefix: "/tests/"
+  collection: "special"
+>
+
+# delete the above setting and save to the filer
+> fs.configure -locationPrefix=/tests/ -delete -apply
+>
+
+# see more options
+> fs.configure -h
+Usage of fs.configure:
+  -apply
+    	update and apply filer configuration
+  -collection string
+    	assign writes to this colletion
+  -delete
+    	delete the configuration by locationPrefix
+  -fsync
+    	fsync for the writes
+  -locationPrefix string
+    	path prefix, required to update the path-specific configuration
+  -replication string
+    	assign writes with this replication
+  -ttl string
+    	assign writes with this ttl
+
+```
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