Ceph: Designing and Implementing Scalable Storage Systems

How it works...

Since ceph-medic performs checks against the entire cluster it needs to know the nodes that exist in your cluster as well as have password-less SSH access to the nodes in your cluster. If your cluster is deployed via ceph-ansible then your nodes are already configured and this will not be required, if not, then you will need to point ceph-medic towards an inventory file and SSH config file.

The syntax for the ceph-medic command is as follows:

        # ceph-medic --inventory /path/to/hosts         --ssh-config /path/to/ssh_config check

The inventory file is a typical Ansible inventory file and can be created in the current working directory where the ceph-medic check is run. The file must be called hosts and the following standard host ...