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

Step-by-Step Cluster Conversion
Serviceguard Extension for SAP on Linux Configuration – sap.config
Chapter 3160
Optional Parameters and Customizable Functions
In ${SGCONF}/<SID> there is a file called customer.functions that
provides a couple of predefined function hooks. They allow the
specification of individual startup or runtime steps at certain phases of
the package script execution. Therefore it is not necessary and also not
allowed to change the sap.functions.
In the following there is a summary of the function hooks in
chronological order:
Table 3-2
Optional Parameters and Customizable Functions
List
Command: Description:
start_addons_predb additional startup steps on database host after all low
level resources are made available after the system has
been cleaned up for db start before start of database
instance
start_addons_postdb additional startup steps on database host after start of the
database instance
start_addons_preci additional startup steps on Central Instance host after
start of the database instance
start_addons_postci additional startup steps on Central Instance host after
start of the Central Instance before start of any
Application Server Instance
start_addons_postciapp additional startup steps that are performed on the Central
Instance host after startup of all Application Server
Instances
Equally, there are hooks for the stop procedure of packages:
stop_addons_preciapp usually this function contains actions that relate to what
has been added to start_addons_postciapp
stop_addons_preci relates to start_addons_postci
stop_addons_postci relates to start_addons_preci