Updated Amazon S3 API (markdown)

Amazon-S3-API.md

@@ -147,3 +147,16 @@ For public access, you can configure an identity with name "anonymous", usually
 ## Presigned URL
 
 Presigned URL is supported. See [[AWS-CLI-with-SeaweedFS#presigned-url]] for example.
+
+
+## Multiple S3 Nodes
+
+If you need to setup multiple S3 nodes, you can just start multiple s3 instances pointing to a filer.
+
+Usually you would also want to have multiple filers. The easiest way is to run filer together with a S3.
+
+```
+
+  weed filer -s3
+
+```