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Chapter 1. Configuring and deploying a Red Hat OpenStack Platform hyperconverged infrastructure

1.1. Hyperconverged infrastructure overview

Red Hat OpenStack Platform (RHOSP) hyperconverged infrastructures (HCI) consist of hyperconverged nodes. In RHOSP HCI, the Compute and Storage services are colocated on these hyperconverged nodes for optimized resource use. You can deploy an overcloud with only hyperconverged nodes, or a mixture of hyperconverged nodes with normal Compute and Red Hat Ceph Storage nodes.

Note

You must use Red Hat Ceph Storage as the storage provider.

Tip

Use BlueStore as the back end for HCI deployments to make use of the BlueStore memory handling features.

Hyperconverged infrastructures are built using a variation of the deployment process described in Deploying Red Hat Ceph and OpenStack together with director. In this deployment scenario, RHOSP director deploys your cloud environment, which director calls the overcloud, and Red Hat Ceph Storage. You manage and scale the Ceph cluster itself separate from the overcloud configuration.

Important

Do not enable Instance HA when you deploy a Red Hat OpenStack Platform (RHOSP) HCI environment. Contact your Red Hat representative if you want to use Instance HA with hyperconverged RHOSP deployments with Red Hat Ceph Storage.

For HCI configuration guidance, see Configuration guidance.

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