The degraded state means that PG is missing or has out-of-date copies of one or more objects. These will normally be corrected by the recovery/backfill process.
- Preface
- Planning for Ceph
- What is Ceph?
- How Ceph works?
- Ceph use cases
- Specific use cases
- Infrastructure design
- Network design
- How to plan a successful Ceph implementation
- Understanding your requirements and how it relates to Ceph
- Defining goals so that you can gauge if the project is a success
- Choosing your hardware
- Training yourself and your team to use Ceph
- Running PoC to determine if Ceph has met the requirements
- Following best practices to deploy your cluster
- Defininga change management process
- Creating a backup and recovery plan
- Summary
- Deploying Ceph
- BlueStore
- Erasure Coding for Better Storage Efficiency
- Developing with Librados
- Distributed Computation with Ceph RADOS Classes
- Monitoring Ceph
- Tiering with Ceph
- Tuning Ceph
- Troubleshooting
- Disaster Recovery
The degraded state
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