Sun Cluster 3.1 Data Service for SAP liveCache

How to Enable liveCache to Run in a Cluster

During a standard SAP installation, liveCache is installed with a physical hostname. You must modify liveCache to use a logical hostname so that liveCache works in a Sun Cluster environment. Use this procedure to enable liveCache to run in a cluster.

  1. Create the failover resource group to hold the network and liveCache resource.

    # scrgadm -a -g livecache-resource-group [-h nodelist]
  2. Verify that you added all the network resources you use to your name service database.

  3. Add a network resource (logical hostname) to the failover resource group.

    # scrgadm -a -L -g livecache-resource-group\ -l lc-logical-hostname [-n netiflist]
  4. Enable the failover resource group.

    # scswitch -Z -g livecache-resource-group
  5. Log on to the node that hosts the liveCache resource group.

  6. Start SAP xserver manually on the node that hosts the liveCache resource group.

    # su - lc-nameadm
    # x_server start

    Lowercase name of liveCache database instance

  7. Log on to SAP APO System by using your SAP GUI with user DDIC.

  8. Go to transaction LC10 and change the liveCache host to the logical hostname you defined in Step 3.

    liveCache host: lc-logical-hostname