=======================================================
MCSG: Rebuilding a cluster
=======================================================
:Title:        MCSG: Rebuilding a cluster
:Author:       Douglas O'Leary <dkoleary@olearycomputers.com>
:Description:  MCSG: Rebuilding a cluster
: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...

To completely rebuild a cluster from scratch, do the following:

1. Halt the cluster::

      cmhaltcl -f

2. On all nodes::

      rm /etc/cmcluster/*

3. On a two node cluster, enable at least one of the volume groups used for 
   packages. This volume group will be used for the lock disk. ::

      vgchange -c n ${vg}
      vgchange -a y ${vg}

4. Generate a cluster configuration script. ::

      cmquerycl -C ${config} -v -n ${node1} ... -n ${node#}
      cmgetconf -c ${cluster} > ${config}

5. Edit the configuration file as appropriate::

      cmcheckconf -C ${config}
      cmapplyconf -C ${config}