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Configuring CVM

As root user, execute the following on the CVM master node only.

 To configure the CVM group in the main.cf file

1. Determine the CVM master node:

   # vxdctl -c mode

2. Make a backup copy of the main.cf file.

   # cd /etc/VRTSvcs/conf/config

   # cp main.cf main.cf.2node

3. Use the commands to reconfigure the CVM group. On the CVM master node, execute:

   # haconf -makerw

   # hasys -add saturn

   # hagrp -modify cvm SystemList -add saturn 2

   # hagrp -modify cvm AutoStartList -add saturn

   # hares -modify ora_priv Device -add qfe0 0 -sys saturn

   # hares -modify ora_priv Device -add qfe1 1 -sys saturn

4. Verify the syntax of main.cf file:

   # hacf -verify .

5. Stop the VCS engine on all systems, leaving the resources available.

   # hastop -all -force

6. Copy the new version of the main.cf to each system in the cluster including the newly added system.

   # rcp (or scp) main.cf nebula:/etc/VRTSvcs/conf/config

   # rcp (or scp) main.cf saturn:/etc/VRTSvcs/conf/config

   In the example, galaxy is the system where main.cf is edited; it does not need a copy.

7. Start VCS on the CVM master.

   # hastart

8. Verify the CVM group has come online.

   # hastatus -sum

9. To enable the existing cluster to recognize the new node, execute on the current node:

   # /etc/vx/bin/vxclustadm -m vcs -t gab reinit

   # /etc/vx/bin/vxclustadm nidmap

10. Repeat steps 7 through 9 on each system in the existing cluster.
11. Start CVM on the newly added node.
    • Determine the node ID:

      # cat /etc/llthost

    • Verify this host ID is seen by the GAB module.

      # gabconfig -a

    • Start the VCS engine.
      • If on the newly added node ports f, u, v, or w were present before hastart, then the newly added node must be rebooted to properly start the VCS:

        # /usr/bin/shutdown -y -i6 -g0

      • If on the newly added node ports f, u, v, or w were not present before hastart, then use the following command to start VCS:

        # hastart

12. Verify the CVM group has come online on the newly added node.

    # hastatus -sum