Registering and Configuring HA for SAP MaxDB

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To enable HA for SAP MaxDB to make SAP MaxDB highly available, configure Oracle Solaris Cluster data services as follows:

Configure SAP xserver as a multiple-master data service.
Configure HA for SAP MaxDB as a failover data service.

Before you perform this procedure, ensure that the HA for SAP MaxDB data service packages are installed.

Caution - One SAP xserver serves multiple SAP MaxDB instances and, if SAP liveCache is used, multiple SAP liveCache instances in the cluster. Therefore, do not configure more than one SAP xserver resource on the same cluster. If more than one SAP xserver resource runs on the same cluster, conflicts between the SAP xserver resources occur. These conflicts cause all SAP xserver resources to become unavailable. If you attempt to start the SAP xserver a second time, the attempt fails. The error message Address already in use is also displayed.