Managing Serviceguard Extension for SAP Version B.05.10, December 2012

1. The Oracle RDBMS and database tools rely on an ORA_NLS[<nls_version>] setting that
refers to NLS files that are compatible to the version of the RDBMS. Oracle 9.x needs NLS
files as delivered with Oracle 9.x.
2. The SAP executables rely on an ORA_NLS[<nls_version>] setting that refers to NLS files
of the same versions as those that were used during kernel link time by SAP development. This
is not necessarily identical to the installed database release.
The Oracle database server and SAP server might need different types of NLS files. The server NLS
files are part of the database Serviceguard package. The client NLS files are installed locally on
all hosts. Do not mix the access paths for ORACLE server and client processes.
The discussion of NLS files has no impact on the treatment of other parts of the ORACLE client files.
The following directories need to exist locally on all hosts where an Application Server might run.
The directories cannot be relocated to different paths. The content needs to be identical to the
content of the corresponding directories that are shared as part of the database SGeSAP package.
The setup for these directories follows the "on top" mount approach, i.e., the directories might
become hidden beneath identical copies that are part of the package:
$ORACLE_HOME/rdbms/mesg
$ORACLE_HOME/oracore/zoneinfo
$ORACLE_HOME/network/admin
Table 10 File System Layout for NFS-based Oracle Clusters
Device Minor
Number
Volume
Group
Name
VG TypePotential Owning
Packages
Access
Point
Mount Point
db instance
specific
dbci<DBSID>
jdb”<DBSID”
shared
disk
$ORACLE_HOME
/oracle/<SID>/saparch
jdbjci<DBSID>/oracle/<SID>/sapreorg
dbcijci<DBSID>/oracle/<SID>/sapdata1
...
/oracle/<SID>/sapdatan
/oracle/<SID>/origlogA
/oracle/<SID>/origlogB
/oracle/<SID>/mirrlogA
/oracle/<SID>/mirrlogB
environment
specific
nonelocal/oracle/client
db instance
specific
nonelocalsome local Oracle client files reside
in /oracle/<SID> as part of the
root filesystem
Oracle Real Application Clusters
Oracle Real Application Clusters (RAC) is an option to the Single Instance Oracle Database
Enterprise Edition. Oracle RAC is a cluster database with shared cache architecture. The SAP
certified solution is based on HP Serviceguard Cluster File System for RAC.
Handling of a RAC database is not included in SGeSAP itself. RAC databases are treated by
SGeRAC and Oracle tools that integrate with SGeSAP. The configuration of SGeSAP packages
for non-database components is identical to non-RAC environments.
38 Planning the Storage Layout