Ceph recommendations and performance tuning
In this recipe, we will learn some performance tuning parameters for the Ceph cluster. These cluster-wide configuration parameters are defined in the Ceph configuration file so that each time any Ceph daemon starts, it will respect the defined settings. By default, the configuration file name is ceph.conf
, which is located in the /etc/ceph
directory. This configuration file has a global section as well as several sections for each service type. Whenever a Ceph service type starts, it applies the configuration defined under the [global]
section as well as the daemon specific section. A Ceph configuration file has multiple sections, as shown in the following screenshot:

We will now discuss the role of each section of the configuration file:
- Global section: The global section of the cluster configuration file begins with the
[global]
keyword. All the settings defined under this section apply to all the daemons of the Ceph cluster. The following is an...