Managing Serviceguard Extension for SAP, December 2007

Planning the Storage Layout
Database Instance Storage Considerations
Chapter 2 71
MAXDB Storage Considerations
SGeSAP supports failover of MAXDB databases as part of SGeSAP NFS
cluster option 1. Cluster File Systems can not be used for the MAXDB
part of SGeSAP clusters.
The considerations given below for MAXDB will also apply to liveCache
and SAPDB clusters unless otherwise noticed.
MAXDB distinguishes an instance dependant path /sapdb/<DBSID> and
two instance independent paths, called IndepData and IndepPrograms.
By default all three point to a directory below /sapdb.
The paths can be configured in a configuration file called
/var/spool/sql/ini/SAP_DBTech.ini. Depending on the version of the
MAXDB database this file contains different sections and settings.
A sample SAP_DBTech.ini for a host with a SAPDB 7.4 (LC1) and an
APO 3.1 using a SAPDB 7.3 database instance (AP1):
[Globals]
IndepData=/sapdb/data
IndepPrograms=/sapdb/programs
[Installations]
/sapdb/LC1/db=7.4.2.3,/sapdb/LC1/db
/sapdb/AP1/db=7.3.0.15,/sapdb/AP1/db
[Databases]
.SAPDBLC=/sapdb/LC1/db
LC1=/sapdb/LC1/db
_SAPDBAP=/sapdb/AP1/db
AP1=/sapdb/AP1/db
[Runtime]
/sapdb/programs/runtime/7240=7.2.4.0,
/sapdb/programs/runtime/7250=7.2.5.0,
/sapdb/programs/runtime/7300=7.3.0.0,
/sapdb/programs/runtime/7301=7.3.1.0,
/sapdb/programs/runtime/7401=7.4.1.0,