Description of problem:
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RHVH ISO installation has certain known_issues, which is commonly repeated across customers and SAs. Documenting this will help them know, the problems and much ahead and reduce the chances of repeating such mistakes.

1. Reinstall on RHVH node with Gluster bricks ( XFS )
XFS metadata & signature is not cleaned up fully and so during the reinstallation, anaconda failure will be seen. To avoid this, remove all the PVs and zero down all the disks
for disk in $(ls /dev/{sd*,nv*}); do wipefs -a -f $disk; done 
Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1506680

2. Network Configuration
Networks are not enabled by default. On the anaconda screen, select 'NETWORK & HOSTNAME' -> Select the Ethernet & click on 'configure' -> Click on 'General' tab, select 'Automatically connect to this network when it is available' -> save -> Done

This will make sure that the network is available across reboots

Refer: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/installation_guide/index#sect-network-hostname-configuration-x86

3. Storage Configuration
By default, anaconda chooses all the disks as the installation destination.
Deselect all the other disks, except for the chosen installation destination disk.

4. Important notes:
a. Red Hat strongly recommends using the Automatically configure partitioning option. 
b. Red Hat strongly recommends not creating untrusted users on RHVH, as this can lead to exploitation of local security vulnerabilities.