diff --git a/openstack-cloud-design-ha.md b/openstack-cloud-design-ha.md
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-## Host Aggregates
-
-Host Aggregates are a way of grouping hosts in an OpenStack cloud.  This allows you to create groups of certain types of hosts and then steer certain classes of VM instances to them.
-
-
-## Designing Host Aggregates in OpenStack
-
-!!! info "To Do"
-
-    Describe how to implement Host Aggregates using the following OpenStack Services:
-
-    - Nova
-    - Placement
-    - Glance
-
-...
diff --git a/openstack-cloud-design-regions.md b/openstack-cloud-design-regions.md
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-# Regions
-
-Regions are separate physical locations served by a single cloud. In OpenStack, a Region is defined as an independently deployed cloud excepting Keystone and Horizon or Skyline.
-
-## Designing Services for Multiple Available Zones
-
-!!! info "To Do"
-
-    Describe how to implement a multi-region cloud with the following OpenStack services:
-
-    - Keystone
-    - Nova
-    - Neutron
-    - Cinder
-    - Glance
-
-...