Oracle^® Solaris Cluster Data Service for SAP liveCache Guide

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 Oracle Solaris Cluster environment. Use this procedure to enable liveCache to run in a cluster.

Before You Begin

Ensure that the /etc/netmasks file has IP-address subnet and netmask entries for all logical hostnames. If necessary, edit the /etc/netmasks file to add any missing entries.

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

   # clresourcegroup create [-n node-list] livecache-resource-group

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.

   # clreslogicalhostname create -g livecache-resource-group \
   -h lc-logical-hostname lc-logical-hostname

   ---

   Note -  If you require a fully qualified hostname, you must specify the fully qualified name with the -h option and you cannot use the fully qualified form in the resource name.

   ---

4. Enable the failover resource group.

   # clresourcegroup online -M livecache-resource-group

5. Enable the network resource (logical hostname).

   # clresource enable lc-logical-hostname

6. Log on to the node that hosts the liveCache resource group.
7. As the liveCache administrator user, start SAP xserver manually on the node that hosts the liveCache resource group.

   # su - lc-name adm
   $ x_server start

   lc-name

   Lowercase name of liveCache database instance

8. Log on to SAP APO System by using your SAP GUI with user DDIC.
9. Go to transaction LC10 and change the liveCache host to the logical hostname you defined in Step 3.

   liveCache host: lc-logical-hostname