Red Hat Summit第1章 Configuring and deploying a Red Hat OpenStack Platform hyperconverged infrastructure
Red Hat OpenStack Platform (RHOSP) hyperconverged infrastructures (HCI) consist of hyperconverged nodes. Services are colocated on these hyperconverged nodes for optimized resource usage. In a RHOSP HCI, the Compute and storage services are colocated on hyperconverged nodes. You can deploy an overcloud with only hyperconverged nodes, or a mixture of hyperconverged nodes with normal Compute and Ceph Storage nodes.
You must use Red Hat Ceph Storage as the storage provider.
- Use ceph-ansible 3.2 and later to automatically tune Ceph memory settings.
- Use BlueStore as the back end for HCI deployments, to make use of the BlueStore memory handling features.
To create and deploy HCI on an overcloud, integrate with other features in your overcloud such as Network Function Virtualization, and ensure optimal performance of both Compute and Red Hat Ceph Storage services on hyperconverged nodes, you must complete the following:
-
Prepare the predefined custom overcloud role for hyperconverged nodes,
ComputeHCI. - Configure resource isolation.
- Verify the available Red Hat Ceph Storage packages.
- Deploy the HCI overcloud.
1.1. Prerequisites
- You have deployed the undercloud. For instructions on how to deploy the undercloud, see Director Installation and Usage.
- Your environment can provision nodes that meet RHOSP Compute and Red Hat Ceph Storage requirements. For more information, see Basic Overcloud Deployment.
- You have registered all nodes in your environment. For more information, see Registering Nodes.
- You have tagged all nodes in your environment. For more information, see Manually Tagging the Nodes.
- You have cleaned the disks on nodes that you plan to use for Compute and Ceph OSD services. For more information, see Cleaning Ceph Storage Node Disks.
- You have prepared your overcloud nodes for registration with the Red Hat Content Delivery Network or a Red Hat Satellite server. For more information, see Ansible-based Overcloud Registration.
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