Planning and Installation Guide


Backing up and restoring CSM data

The chapter discusses backing up and restoring CSM data.


Backing up CSM data

The following directories and all their subdirectories should be backed up periodically. These directories are used by Cluster Systems Management to store persistent data and other configuration information. In addition, if major configuration changes are made by means of CSM commands, a back up should be performed.

These directories only need to be backed up on the management server.


Restoring CSM data

Do the following procedure to restore CSM data:

  1. Reinstall CSM if necessary.
  2. Copy /etc/opt/csm and /var/opt/csm from the backup media.
  3. Refresh RMC. (See Backing up and restoring /var/ct.):

Backing up and restoring /var/ct

To perform a backup, do the following steps:

  1. Run the following command to stop the RMC subsystems.
    /usr/sbin/rsct/bin/rmcctrl -z
    

    The command does not complete until all RMC subsystems are stopped.

  2. Perform a backup of the /var/ct directory
  3. Run the following command to restart the RMC subsystems.
     /usr/sbin/rsct/bin/rmcctrl -s
    

To restore the /var/ct directory, do the following steps:

  1. Stop the RMC subsystems by running the following command:
     /usr/sbin/rsct/bin/rmcctrl -z
    

    The command does not complete until all RMC subsystems are stopped.

  2. If in HA cluster mode, run the following command to stop the cluster subsystems:
     /usr/sbin/rsct/bin/cthactrl -k 
    
  3. Restore the /var/ct directory.
  4. If in HA cluster mode, run the following command to start the cluster subsystems:
    /usr/sbin/rsct/bin/cthactrl -s 
    
  5. To restart the RMC subsystems, run the following command
     /usr/sbin/rsct/bin/rmcctrl -s
    


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