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Adding Ceph OSDs with the Same Drive Topology as Existing OSDs

Ansible uses the group_vars/osds.yml file to configure OSDs.

Prerequisites

A Ceph cluster deployed using Ansible is running properly.
You have the root permission on the new nodes.
A node that has the same number of data drives as other OSD nodes in the cluster is available.

Procedure

Copy the add-osd.yml file in the /ceph-ansible/infrastructure-playbooks/ directory to the home directory.
1
cp ./infrastructure-playbooks/add-osd.yml ./add-osd.yml
Add an OSD node name to the [osds] section in the hosts file of the cluster.
Ensure that Ansible can connect to the node.
1
ansible all -i hosts -m ping
Run the playbook.
1
ansible-playbook -i host add-osd.yml

Parent topic: Adding OSD Nodes