Sun Cluster HA for SAP DB Overview

To eliminate single points of failure in an SAP DB system, Sun Cluster HA for SAP DB provides the following features:

• Fault monitoring and automatic failover for the SAP DB application. You must configure Sun Cluster HA for SAP DB as a failover data service.

• Fault monitoring and automatic restart for SAP xserver. You must configure SAP xserver as a scalable data service.

For conceptual information about failover data services and scalable data services, see the Sun Cluster Concepts Guide for Solaris OS.

Each component of SAP DB has data service that protects the component when the component is configured in Sun Cluster. See the following table.

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Note –

The files that are associated with the SUNW.sap_xserver resource type are supplied with the Sun Cluster HA for SAP liveCache data service. The Sun Cluster HA for SAP liveCache data service is installed when you install Sun Cluster HA for SAP DB data service.

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Table 1–1 Protection of SAP DB Components by Sun Cluster Data Services

SAP DB Component	Data Service
SAP DB	Sun Cluster HA for SAP DB  The resource type is SUNW.sapdb.
SAP xserver	Sun Cluster HA for SAP liveCache  The resource type is SUNW.sap_xserver.
NFS file system	Sun Cluster HA for NFS  The resource type is SUNW.nfs. For more information about this data service, see Sun Cluster Data Service for Network File System (NFS) Guide for Solaris OS.