Adding multiple hosts

Edit online

You can use the Ceph Orchestrator to add multiple hosts to an IBM Storage Ceph cluster at the same time using the service specification in YAML file format.

Prerequisites

Edit online

  • A running IBM Storage Ceph .

Procedure

Edit online

  1. Create the hosts.yaml file:

    Example 

    [root@host01 ~]# touch hosts.yaml

  2. Edit the hosts.yaml file to include the following details:

    Example 

    service_type: host
addr: host01
hostname: host01
labels:
- mon
- osd
- mgr
---
service_type: host
addr: host02
hostname: host02
labels:
- mon
- osd
- mgr
---
service_type: host
addr: host03
hostname: host03
labels:
- mon
- osd

  3. Mount the YAML file under a directory in the container:

    Example 

    [root@host01 ~]# cephadm shell --mount hosts.yaml:/var/lib/ceph/hosts.yaml

  4. Navigate to the directory:

    Example 

    [ceph: root@host01 /]# cd /var/lib/ceph/

  5. Deploy the hosts using service specification:

    Syntax 

    ceph orch apply -i FILE_NAME.yaml

    Example 

    [ceph: root@host01 hosts]# ceph orch apply -i hosts.yaml

Verification

Edit online

  • List the hosts:

    Example 

    [ceph: root@host01 /]# ceph orch host ls