Document URL: 

https://docs.openshift.com/enterprise/3.1/install_config/install/advanced_install.html

Section Number and Name: 
Verifying the Installation

Describe the issue:

The docs have the reader run etcdctl commands on the master host, even thought ectd might not be installed and configured on the master. 

"On a master host, verify the etcd cluster health, substituting for the FQDNs of your etcd hosts in the following"

Suggestions for improvement: 

Have the docs read using the etcd host and not master host