In this recipe, you will be upgrading your Ceph cluster from Hammer to Jewel.
Upgrading your Ceph cluster from Hammer to Jewel
How to do it...
We will be upgrading a CentOS 7 server running Ceph Hammer 0.94.10 to the latest stable Jewel release, 10.2.9.
Upgrading the Ceph monitor nodes
Upgrading a Ceph monitor is a simple process and should be done one monitor at a time. At a high level, you will need to enable the Jewel repositories, update the permission on the monitor directories, and reboot the monitor to complete the upgrade. Let's have a further look in detail...