Specialization 4 of 4 ยท Linux Enterprise Track
Cloud Infrastructure and Storage
Operate a private cloud on Red Hat OpenStack Platform, and the Ceph storage behind it.
Is it for you? You want to run the cloud, and the storage under it, that other teams build on.
- Exam length
- 4 hours
- Based on
- The latest Red Hat OpenStack Platform
- Recommended first
- RHCSA; the CL110 and CL210 courses are recommended
- Format
- Hands-on tasks on live systems
What the exam covers
- Control plane services, backup and restore, start and stop an overcloud
- Infrastructure and user security: AIDE, IdM back end, domains and roles
- Images, flavors and instance initialisation
- Storage with Ceph and Swift, and choosing between them
- Networking with Open Virtual Networking (OVN) and shared networks
- Compute nodes: capacity, hyperconverged resources and rebalancing
- Monitoring with the Service Telemetry Framework and logging flow
- Automation with Heat templates and Ansible, and troubleshooting
- Exam length
- 3 hours
- Based on
- The most recent Red Hat Ceph Storage
- Recommended first
- RHCSA (RHCE is better); the CL260 course is recommended
- Format
- Hands-on tasks on live systems
What the exam covers
- Install a containerized Ceph server with the Ansible files that come with it
- Add monitor (MON) and object storage device (OSD) nodes to a running cluster
- Replicated and erasure-coded pools, Ceph authentication and placement group autoscaling
- Block storage with RBD: images, snapshots, clones, mirroring, import and export
- Object storage with the RADOS Gateway: S3, Swift, multisite and in-transit encryption
- File storage with CephFS: persistent mounts, quotas and snapshots
- CRUSH maps, cluster maps and OSD full ratios
- Troubleshoot MON, OSD, client and gateway problems, and tune scrubbing and recovery
Planning your three. Two exams that fit together, and each combines with any other specialization.
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