diff --git a/S3-Gateway-FAQ.md b/S3-Gateway-FAQ.md
index 6054242..3fde1ce 100644
--- a/S3-Gateway-FAQ.md
+++ b/S3-Gateway-FAQ.md
@@ -19,7 +19,10 @@ There are 2 ways to fix this.
 > fs.configure -locationPrefix=/buckets/ -volumeGrowthCount=1 -apply
 ```
 
-This will add 1 physical volume when existing volumes are full. If using replication, you will need to add more volumes.
+This will add 1 physical volume when existing volumes are full. If using replication, you will need to add more volumes, so that it is a multiple of the number of replicas:
+```
+ fs.configure -locationPrefix=/buckets/ -replication=001 -volumeGrowthCount=2 -apply
+```
 
 See  https://github.com/chrislusf/seaweedfs/wiki/Path-Specific-Configuration