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

Serviceguard Extension for SAP on Linux Cluster Administration
Serviceguard Extension for SAP on Linux Administration Aspects
Chapter 5216
Serviceguard Extension for SAP on Linux
Administration Aspects
Serviceguard Extension for SAP on Linux needs some additional
information about the configuration of an SAP environment. This
information is stored in the file ${SGCONF}/<SID>/sap.config. For
more complicated cases additional configuration files
${SGCONF}/<SID>/sap<pkg_name>.config can be created. A
sap<pkg_name>.config file is sometimes used to create a package
specific SECTION TWO of the sap.config file in order to achieve proper
SAP application server handling. In principle this file serves the same
purpose and has the same syntax as the generic sap.config file.
It is very important that the information in this file is consistent with
the way your system is configured. This file must be available on all
nodes of the cluster. Under normal operation there is no need to modify
this file. Comments are provided within the file and should be
self-explanatory. The following administration activities are possible but
they must be accompanied by an adaptation of the sap.config file on all
cluster nodes:
• changing the SAP System ID
• changing the name of the SAP System Administrator
• migrating to another database vendor
• adding/deleting Dialog Instances
• changing an Instance Name
• changing an Instance Number
• changing the network name belonging to a relocatable address
• changing the name of a Serviceguard Extension for SAP on Linux
package
• changing hostnames of hosts inside the cluster
• changing hostnames or IP addresses of hosts that run additional
application servers
• changing the location of any SAP-specific directory in the file system
• changing the name of the ORACLE listener