In this section, we'll describe commands to explore the logical layout of an example Ceph cluster. Before we go changing anything, we need to know exactly what we have first.
Topology
by Nick Fisk, Karan Singh, Vikhyat Umrao, Michael Hackett
Ceph: Designing and Implementing Scalable Storage Systems
- Title Page
- Copyright
- About Packt
- Contributors
- Preface
- Ceph - Introduction and Beyond
- Working with Ceph Block Device
- Introduction
- Configuring Ceph client
- Creating Ceph Block Device
- Mapping Ceph Block Device
- Resizing Ceph RBD
- Working with RBD snapshots
- Working with RBD clones
- Disaster recovery replication using RBD mirroring
- Configuring pools for RBD mirroring with one way replication
- Configuring image mirroring
- Configuring two-way mirroring
- Recovering from a disaster!
- Working with Ceph and OpenStack
- Working with Ceph Object Storage
- Introduction
- Understanding Ceph object storage
- RADOS Gateway standard setup, installation, and configuration
- Creating the radosgw user
- Accessing the Ceph object storage using S3 API
- Accessing the Ceph object storage using the Swift API
- Integrating RADOS Gateway with OpenStack Keystone
- Integrating RADOS Gateway with Hadoop S3A plugin 
- Working with Ceph Object Storage Multi-Site v2
- Working with the Ceph Filesystem
- Operating and Managing a Ceph Cluster
- Introduction
- Understanding Ceph service management
- Managing the cluster configuration file
- Running Ceph with systemd
- Scale-up versus scale-out
- Scaling out your Ceph cluster
- Scaling down your Ceph cluster
- Replacing a failed disk in the Ceph cluster
- Upgrading your Ceph cluster
- Maintaining a Ceph cluster
- Ceph under the Hood
- Introduction
- Ceph scalability and high availability
- Understanding the CRUSH mechanism
- CRUSH map internals
- CRUSH tunables
- Ceph cluster map
- High availability monitors
- Ceph authentication and authorization
- I/O path from a Ceph client to a Ceph cluster
- Ceph Placement Group
- Placement Group states
- Creating Ceph pools on specific OSDs
- The Virtual Storage Manager for Ceph
- More on Ceph
- Introduction
- Disk performance baseline
- Baseline network performance
- Ceph rados bench
- RADOS load-gen
- Benchmarking the Ceph Block Device
- Benchmarking Ceph RBD using FIO
- Ceph admin socket
- Using the ceph tell command
- Ceph REST API
- Profiling Ceph memory
- The ceph-objectstore-tool
- Using ceph-medic
- Deploying the experimental Ceph BlueStore
- Deploying Ceph
- BlueStore
- Erasure Coding for Better Storage Efficiency
- Developing with Librados
- Distributed Computation with Ceph RADOS Classes
- Tiering with Ceph
- Troubleshooting
- Disaster Recovery
- Operations and Maintenance
- Monitoring Ceph
- Performance and Stability Tuning
- Other Books You May Enjoy
Topology
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