anchor.diff:  You must have an active OpenShift Enterprise subscription on your Red Hat
   account to proceed. If you do not, contact your sales representative for more
   information.
  +
  +[IMPORTANT]
  +====
  +OpenShift Enterprise (OSE) 3.x requires Red Hat Enterprise Linux (RHEL) 7.1 or
  +higher. OSE 3.1.x requires Docker 1.8.2 or higher. Upgrade the Docker packages
  +in RHEL 7.1 before installing or upgrading to OSE 3.1.
  +====
   endif::[]
   
   The system requirements vary per host type:
  
positive.code: installation option
  endif::[]
  ifdef::openshift-enterprise[]
  - Base OS: Red Hat Enterprise Linux (RHEL) 7.1 or later with "Minimal"
  installation option
  endif::[]
  - Docker 1.8.2 or later
  - 1 vCPU
  - Minimum 8 GB RAM
  - Minimum 15 GB hard disk space
  
negative.code: installation option
  endif::[]
  ifdef::openshift-enterprise[]
  - Base OS: RHEL 7.1 or later with "Minimal"
  installation option
  endif::[]
  - 2 vCPU
  