Upgrading VCS in secure enterprise environments

In secure enterprise environments, ssh or rsh communication is not allowed between systems. In such cases, the installer program can upgrade VCS only on systems with which it can communicate (most often the local system only).

To upgrade VCS in secure enterprise environments with no rsh or ssh communication

  1. Run the installer program on each node to upgrade the cluster to VCS 7.2.

    On each node, the installer program updates the configuration, stops the cluster, and then upgrades VCS on the node. The program also generates a cluster UUID on the node. Each node may have a different cluster UUID at this point.

  2. Start VCS on the first node.
    # hastart

    VCS generates the cluster UUID on this node. Run the following command to display the cluster UUID on the local node:

    # /opt/VRTSvcs/bin/uuidconfig.pl -clus -display systemname
  3. On each of the other nodes, perform the following steps:

    • Set the value of the VCS_HOST environment variable to the name of the first node.

    • Display the value of the CID attribute that stores the cluster UUID value:

      # haclus -value CID
    • Copy the output of the CID attribute to the file /etc/vx/.uuids/clusuuid.

    • Update the VCS_HOST environment variable to remove the set value.

    • Start VCS.

      The node must successfully join the already running nodes in the cluster.