Managing Serviceguard Extension for SAP, December 2007

Understanding Serviceguard Extension for SAP
Designing SGeSAP Cluster Scenarios
Chapter 1 19
simple fashion. They omit other aspects and the level of detail that would
be required for a reasonable and complete high availability
configuration.
Figure 1-1 Two-Package Failover with Mutual Backup Scenario
Each package name should include the SAP System Identifier (SID) of
the system to which the package belongs. If similar packages of the same
type get added later, they have a distinct namespace because they have a
different SID.
It is strongly recommended to base the package naming on the package
type naming conventions. This should be done by prefixing the package
type to the SID to get the package name. This allows easy identification
and support.
Example: A simple mutual failover scenario defines two packages, called
ciSID and dbSID.
SGeSAP Cluster
Mutual Failover
node1
node2
dbSID
ciSIDDB and CI
package can fail
and recover
independently
Application servers not part of cluster
shared disks