Once you’ve completed your preflight checklist, you should be able to begin deploying a Ceph Storage Cluster.
Most Ceph users don’t store objects directly in the Ceph Storage Cluster. They typically use at least one of Ceph Block Devices, the Ceph Filesystem, and Ceph Object Storage.
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There are several methods for getting Ceph software. The easiest and most common method is to get packages by adding repositories for use with package management tools such as the Advanced Package Tool (APT) or Yellowdog Updater, Modified (YUM). You may also retrieve pre-compiled packages from the Ceph repository. Finally, you can retrieve tarballs or clone the Ceph source code repository and build Ceph yourself.
Once you have the Ceph software (or added repositories), installing the software is easy. To install packages on each Ceph Node in your cluster. You may use ceph-deploy to install Ceph for your storage cluster, or use package management tools. You should install Yum Priorities for RHEL/CentOS and other distributions that use Yum if you intend to install the Ceph Object Gateway or QEMU.
Once you have Ceph installed on your nodes, you can deploy a cluster manually. The manual procedure is primarily for exemplary purposes for those developing deployment scripts with Chef, Juju, Puppet, etc.
As new versions of Ceph become available, you may upgrade your cluster to take advantage of new functionality. Read the upgrade documentation before you upgrade your cluster. Sometimes upgrading Ceph requires you to follow an upgrade sequence.