In this chapter, we will cover the following recipes:
Understanding Ceph service management
Managing the cluster configuration file
Running Ceph with SYSVINIT
Running Ceph as a service
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
Introduction
At this point, I'm sure you are pretty confident in Ceph cluster deployment, provisioning, as well as monitoring. In this chapter, we will cover standard topics such as Ceph service management. We will also cover advanced topics such as scaling up your cluster by adding OSD and MON nodes, and finally, upgrading the Ceph cluster followed by some maintenance operations.