During the deployment each service configured by the Dell EMC Ready Architecture for Red Hat OpenStack Platform needs to reside upon a particular hardware type. For each server platform, two types of nodes have been designed:
- Dell EMC PowerEdge R640 or Dell EMC PowerEdge R740xd for Computes, Controllers, Solution Admin Hosts, or Infrastructure hardware type
- Dell EMC PowerEdge R740xd for Storage nodes
Red Hat OpenStack Director is designed for flexibility, enabling you to try different configurations in order to find the optimal service placement for your workload. The following table presents the recommended layout of each service.
The Red Hat OpenStack Director is deployed to the Solution Admin Host as an individual VM. This enables the VM to control its respective resources.
Node to deploy | Service |
Solution Admin Host (KVM) | Red Hat OpenStack Director |
OpenStack Controllers | Red Hat Ceph Storage Dashboard |
OpenStack Controllers | Cinder-scheduler |
OpenStack Controllers | Cinder-volume |
OpenStack Controllers | Database-server |
OpenStack Controllers | Glance-Image |
OpenStack Controllers | HAproxy (Load Balancer) |
OpenStack Controllers | Heat |
OpenStack Controllers | Keystone-server |
OpenStack Controllers | Neutron-server |
OpenStack Controllers | Nova-Controller |
OpenStack Controllers | Nova dashboard-server |
Three or more Compute Nodes | Nova-multi-compute |
OpenStack Controllers | Pacemaker |
OpenStack Controllers | RabbitMQ-server (Messaging) |
OpenStack Controllers | Barbican (Secure manangement of secrets) |
OpenStack Controllers | Octavia (LBaaS) |
OpenStack Controllers | Red Hat Ceph storage RADOS Gateway |
OpenStack Controllers | Red Hat Ceph storage Monitor1 |
Three or more Storage Servers | Red Hat Ceph storage (Block)2 |
Optional Services | |
Dell EMC Unity storage | |
Dell EMC PowerMax storage | |
Dell EMC SC series storage | |
Dell EMC SC series storage Enterprise Manager Server |
The number of OSDs that can be supported with 3 Controller nodes is listed at 1,000 (https://access.redhat.com/articles/1548993)