Managing Serviceguard Extension for SAP on Linux (IA64 Integrity and x86_64), February 2008

Planning a File System Layout for SAP in a Serviceguard/LX Cluster Environment
Overview Serviceguard packages
Chapter 2 67
Some of the above listed Serviceguard packages can also be configured as
a combination: (dbci, dbjci dbcijci...). For example a dbci package is
a combination of the db instance and the ci instance and would be
considered one entity.
The advantage of such a combination is that the db instance and the ci
instance always start, stops and relocate together as one single package
instead of two. The other advantage is such a Serviceguard package only
requires one virtual IP address instead of two.
Table 2-6 Mapping of SAP components to Serviceguard
Extension for SAP on Linux package types
Component Description
DB Database Instance for ABAP and JAVA
components (db)
ABAP CI ABAP Central Instance (ci)
JAVA CI JAVA Central instance
Note: not recommended by SAP for switchover.
ASCS ABAP SAP Central Services (ci)
SCS JAVA SAP Central Services (jci)
DI Dialog Instance (d)
AREP ABAP Replicated Enqueue Server (arep)
REP JAVA Replicated Enqueue Server (rep)
liveCache liveCache instance (lc)
SAPNFS NFS package (sapnfs) that provides NFS file
systems to any of the above SAP instances. As
described earlier this Serviceguard package
provides the cluster wide SHARED NFS mount
points required by any of the above SAP instance
types.