Installation guide

6.3.5.2 SAP Profiles

The most important SAP profile parameter for a clustered SAP system is SAPLOCALHOST.

After the installation with sapinst, ensure that all SAP instance profiles contain this parameter.

The value of the parameter must be the virtual host name specified during the installation.

As a general requirement the SAP parameter es/implementation must be set to std in the

SAP DEFAULT.PFL file. See SAP Note 941735. The SAPInstance resource agent cannot

use the AUTOMATIC_RECOVERY function for systems have set this parameter to "map".

In the START profiles, the parameter SAPSYSTEM must be set (default since 7.00).

6.3.5.3 SAP Release-specific Post-processing

For improved SAP hardware key determination in high-availability scenarios, see SAP Note

1178686.

For SAP kernel release 4.6D, follow the instructions in appendix A1 of SAP Note 1008828.

For SAP kernel release 6.40, follow the instructions of SAP Note 877795.

For SAP kernel release 6.40, update the SAP kernel to at least patch level 208.

When using a SAP kernel 6.40, please read and implement the actions from the section

Manual post-processing section of SAP Note 995116.

6.3.5.4 Before Starting the Cluster

An empty work directory (/usr/sap/<SID>/<Instance><Number>/work) of an SAP instance

results in a monitoring error of the SAPInstance resource agent. Every instance must be

started manually in order for the correct entries to be written to the work directory. After a

manual shutdown of the instances, the cluster is ready to control them.

Remember that the virtual IP addresses for the SAP instances you wish to start must be

active. They can be started manually (e.g., with the Linux command ip) and stopped again

after shutting down the SAP instances.

6.3.6 Enqueue Replication Server

Follow the instructions of the official SAP Library:

http://help.sap.com/saphelp_nw2004s/helpdata/en/de/cf853f11ed0617e10000000a114084/fra

meset.htm

7 Resource Manager

7.1 Cluster Resources

There are many types of configurable cluster resources. Reference the Adding a Cluster

Service to the Cluster section of Configuring and Managing a Red Hat Cluster for more

information.