Este conteúdo não está disponível no idioma selecionado.

Appendix A. Troubleshooting


A.1. Ansible stops installation because it detects less devices than expected

The Ansible automation application stops the installation process and returns the following error:

- name: fix partitions gpt header or labels of the osd disks (autodiscover disks)
  shell: "sgdisk --zap-all --clear --mbrtogpt -- '/dev/{{ item.0.item.key }}' || sgdisk --zap-all --clear --mbrtogpt -- '/dev/{{ item.0.item.key }}'"
  with_together:
    - "{{ osd_partition_status_results.results }}"
    - "{{ ansible_devices }}"
  changed_when: false
  when:
    - ansible_devices is defined
    - item.0.item.value.removable == "0"
    - item.0.item.value.partitions|count == 0
    - item.0.rc != 0
Copy to Clipboard Toggle word wrap

What this means:

When the osd_auto_discovery parameter is set to true in the /usr/share/ceph-ansible/group_vars/osds.yml file, Ansible automatically detects and configures all the available devices. During this process, Ansible expects that all OSDs use the same devices. The devices get their names in the same order in which Ansible detects them. If one of the devices fails on one of the OSDs, Ansible fails to detect the failed device and stops the whole installation process.

Example situation:

  1. Three OSD nodes (host1, host2, host3) use the /dev/sdb, /dev/sdc, and dev/sdd disks.
  2. On host2, the /dev/sdc disk fails and is removed.
  3. Upon the next reboot, Ansible fails to detect the removed /dev/sdc disk and expects that only two disks will be used for host2, /dev/sdb and /dev/sdc (formerly /dev/sdd).
  4. Ansible stops the installation process and returns the above error message.

To fix the problem:

In the /etc/ansible/hosts file, specify the devices used by the OSD node with the failed disk (host2 in the Example situation above):

[osds]
host1
host2 devices="[ '/dev/sdb', '/dev/sdc' ]"
host3
Copy to Clipboard Toggle word wrap

See Chapter 5, Installing Red Hat Ceph Storage using Ansible for details.

Voltar ao topo
Red Hat logoGithubredditYoutubeTwitter

Aprender

Experimente, compre e venda

Comunidades

Sobre a documentação da Red Hat

Ajudamos os usuários da Red Hat a inovar e atingir seus objetivos com nossos produtos e serviços com conteúdo em que podem confiar. Explore nossas atualizações recentes.

Tornando o open source mais inclusivo

A Red Hat está comprometida em substituir a linguagem problemática em nosso código, documentação e propriedades da web. Para mais detalhes veja o Blog da Red Hat.

Sobre a Red Hat

Fornecemos soluções robustas que facilitam o trabalho das empresas em plataformas e ambientes, desde o data center principal até a borda da rede.

Theme

© 2025 Red Hat