MCSG: Removing clustersΒΆ

Title:MCSG: Removing clusters
Author:Douglas O’Leary <>
Description:MCSG: Removing clusters
Date created:06/2007
Date updated:07/2008
Disclaimer:Standard: Use the information that follows at your own risk. If you screw up a system, don’t blame it on me...

As in most things, removing the configuration is much easier than setting it up. To remove a cluster, do the following:

  1. Halt the cluster:

    cmhaltcl -f
  2. Edit the /etc/lvmrc file.

    1. Set the AUTO_VG_ACTIVATE variable to 1
    2. Comment out any modifications to the custom_vg_activate function call.
  3. Update the /etc/fstab file to enable automatic filesystem mounting as appropriate.

  4. Deactivate exclusive mode bit on all MCSG managed volume groups:

    vgchange -c n ${vg}
  5. Remove the MCSG software