To configure SFCFS and CVM agents on the new node

1. Verify if /etc/VRTSvcs/conf/config/.stale file is present, before starting VCS.

   If /etc/VRTSvcs/conf/config/.stale file is not present, enter:

   # touch /etc/VRTSvcs/conf/config/.stale

2. Start the VCS server and vxfen on the new node:

   • Start LLT and GAB on the new node:

     # /etc/init.d/llt start
     # /etc/init.d/gab start

   • For starting vxfen in the disable mode, run the following commands on system03:

     # echo vxfen_mode=disabled > /etc/vxfenmode
     # /etc/init.d/vxfen start

   • For starting vxfen in the enabled mode:

     • Copy the following files from one of the existing cluster nodes to the new node:

       /etc/vxfenmode
       /etc/vxfendg

     • Run the following command:

       # /etc/init.d/vxfen start

3. On the new node, verify that the GAB port memberships are a and b. Run the following command:

   # /sbin/gabconfig -a

4. Determine the CVM master node:

   # vxdctl -c mode

5. Make a backup copy of the main.cf file. Enter the following commands:

   # cd /etc/VRTSvcs/conf/config
   # cp main.cf main.cf.2node

6. Open the VCS configuration for writing and add the new node. For example:

   # haconf -makerw 
   # hasys -add system03

7. Add the new node to the CVM system list and specify a failover priority of zero:

   # hagrp -modify cvm SystemList -add system03 X

   where X is one more than the index of the last system in System list of CVM service group in /etc/VRTSvcs/conf/config/main.cf.

8. Add the new node to the CVM AutoStartList:

   # hagrp -modify cvm AutoStartList -add system03

9. Node ID can be obtained from CVMNodeId of /etc/VRTSvcs/conf/config/main.cf. Add the new node, system03, and its node ID, #, to the cvm_clust resource:

   # hares -modify cvm_clus CVMNodeId -add system03 2

10. Write the new VCS configuration to disk:

    # haconf -dump -makero

11. Verify the syntax of main.cf file:

    # hacf -verify .

12. To enable the existing cluster to recognize the new node, execute on all the nodes in the cluster:

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

13. Start CVM on the newly added node.

    • Determine the node ID:

      # cat /etc/llthosts

    • Verify that 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 are present before hastart, then the newly added node must be rebooted to properly start VCS. To properly start VCS:

        # shutdown -r

      • 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

14. Check the system status to see whether the new node is online:

        # hastatus -sum
        -- SYSTEM STATE
        -- System         State       Frozen 
        A      system01   RUNNING     0
        A      system02   RUNNING     0
        A      system03   RUNNING     0
    
        -- GROUP STATE
        -- Group   System     Probed  AutoDisabled  State
        B cvm      system01   Y       N             ONLINE
        B cvm      system02   Y       N             ONLINE
        B cvm      system03   Y       N             ONLINE

15. Add shared disk groups to the cluster configuration:

    # cfsdgadm add cfsdg system03=sw

16. Create a /mnt on system03 and run the following commands for the shared mount points:

    # cfsmntadm modify /mnt add system03=rw

    See cfsmntadm(1M) manual page.

17. Use thecfsmount command to cluster mount /mnt on the new node:

    # cfsmount /mnt