Adding or removing IBM Spectrum LSF hosts

After you have installed and configured IBM Spectrum LSF Suite for Enterprise, you can manage this deployment by adding hosts to it or removing them.

Note: You can manage these hosts within your cluster deployment, but changing the LSF cluster name IBM Spectrum LSF Suite for Enterprise deployment is not supported.

Adding hosts to an LSF host group

  1. Log in to your IBM Spectrum LSF Suite for Enterprise deployment host as root.
  2. Navigate to the playbook directory. For example:
    cd /opt/ibm/lsf_install/playbook
  3. Edit the IBM Spectrum LSF Suite for Enterprise hosts inventory file (lsf-inventory), and add host names under the applicable group name roles: LSF_Masters, LSF_Servers, LSF_Clients, or GUI_Hosts.
  4. Save your changes to the file and run the IBM Spectrum LSF Suite for Enterprise deployment command:
    ansible-playbook -i lsf-inventory  lsf-deploy.yml

Removing hosts from an existing deployment

  1. Log in to your LSF management host as the LSF administrator (lsfadmin).
  2. Edit the lsf.cluster.cluster_name file and remove the hosts.
  3. Save your changes to the file and restart the LSF management as a normal LSF cluster:
    lsadmin limrestart
badmin mbdrestart
  4. Log in to the on to IBM Spectrum LSF Suite for Enterprise deployment host as root.
  5. Edit the IBM Spectrum LSF Suite for Enterprise hosts inventory file (lsf-inventory), and remove host names from the applicable group name roles: LSF_Masters, LSF_Servers, LSF_Clients, or GUI_Hosts.
  6. Save your changes to the file.

    It is not necessary to run the IBM Spectrum LSF Suite for Enterprise deployment command; the next time that the IBM Spectrum LSF Suite for Enterprise deployment updates, these removed hosts will be ignored.