Managing Serviceguard Extension for SAP, December 2007

Understanding Serviceguard Extension for SAP
Chapter 1 13
1 Understanding Serviceguard
Extension for SAP
HP Serviceguard Extension for SAP (SGeSAP) extends HP
Serviceguard’s failover cluster capabilities to SAP application
environments. SGeSAP continuously monitors the health of each SAP
cluster node and automatically responds to failures or threshold
violations. It provides a flexible framework of package templates to
easily define cluster packages that protect various components of a
mission-critical SAP infrastructure.
SGeSAP provides a flexible framework of package templates to easily
define cluster packages that protect various components of a
mission-critical SAP infrastructure. SGeSAP provides a single, uniform
interface to cluster ABAP-only, JAVA-only, and add-in installations of
SAP Web Application Servers (SAP WAS). Support includes SAP R/3
kernel, mySAP components, SAP Application Server for ABAP, SAP
Application Server for JAVA, and SAP Netweaver based SAP
applications in a range of supported release versions as specified in the
separately available release notes.
The clustered SAP components include SAP ABAP Central Services, SAP
JAVA Central Services, SAP ABAP Application Servers, SAP JAVA
Application Servers, SAP Central Instances, SAP Enqueue Replication
Servers, Oracle single-instance databases, MAXDB databases, SAP
liveCache and SAP MDM components. For some platforms, support for
liveCache hot standby clusters, DB/2 and Informix databases is included.
It is possible to combine all clustered components of a single SAP system
into one failover package for simplicity and convenience. There is also
full flexibility to split components up into several packages to avoid
unwanted dependencies and to lower potential failover times.
Multiple SAP applications of different type and release version can be
consolidated in a single cluster. SGeSAP enables SAP instance
virtualization. It is possible to use SGeSAP to move redundant SAP
ABAP Application Server Instances between hosts to quickly adapt to
changing resource demands or maintenance needs. SGeSAP allows
utilizing a combination of HP 9000 and HP Integrity servers in a mixed
cluster with heterogeneous failover of SAP packages.