diff --git a/Production-Setup.md b/Production-Setup.md
index 8f37361..f8a1de9 100644
--- a/Production-Setup.md
+++ b/Production-Setup.md
@@ -13,10 +13,6 @@ And then, choose the component you want to setup
 * Setup S3
 * Setup FUSE mount
 
-For dev ops, metrics is also needed:
-* Setup metrics
-* Setup security
-
 ## Prerequisite
 Make sure the ports are open. By default
 
@@ -156,3 +152,4 @@ Run
 * If running out of in house machines
   * Enable [[Erasure Coding for warm storage]] to save replica spaces.
   * Move warm data to [[Cloud Tier]]
+* Learn to use `weed shell`, to check the volume status, mount/unmount/move/balance/copy/delete a volume, fsck for the volume, erasure encoding/decoding, etc.
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