Describe the issue:
In chapter 3.2. Installing a Red Hat Ceph Storage Cluster, in step 7. ii. there is a note saying: 
"Add the custom CRUSH hierarchy to the OSD files in the host_vars directory as described in a step below to make this configuration work."

However, there is no mention of host_vars in any other steps in the procedure or in the whole guide. Therefore, there is probably some step missing.

Describe the task you were trying to accomplish:

Suggestions for improvement:

Document URL: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html-single/installation_guide_for_red_hat_enterprise_linux/index#installing-a-red-hat-ceph-storage-cluster

Chapter/Section Number and Title: 3.2. Installing a Red Hat Ceph Storage Cluster

Product Version: 3

Environment Details:

Any other versions of this document that also needs this update:

Additional information: