Before we dive in, let's take a look at some key components that make up a Ceph cluster. These components are what makes Ceph, and it is important to have a proper understanding of what they are.
Ceph components
A physical node as cluster member
A physical node is the actual server hardware that holds one or more Ceph components.
Maps
In Ceph, maps hold information, such as a list of participating nodes in a cluster and their locations, and data paths, and a list of OSDs with certain data chunks. There are several maps in a Ceph cluster, such as a cluster map...