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

Step-by-Step Cluster Conversion
Linux Configuration
Chapter 3 111
A correct Linux configuration ensures that all cluster nodes provide the
environment and system configuration required to run SAP. Several of
the following steps must be repeated on each node. Record the steps
completed for each node, as you complete them. This helps identify errors
in the event of a malfunction later in the integration process. The Linux
configuration task is split into the following sections:
NOTE The above step should only be performed once on the primary host.
1. Directory Structure Configuration - This section describes the
changes that need to be done in order to distribute the SAP file
systems across logical volumes on local and shared disk systems.
The primary host is the host where the SAP Central Instance was
installed. If your database is currently running on a machine
different from this, the database vendor dependent steps have to be
done on the host on which the database was installed.
2. Cluster Node Synchronization - This section consists of steps
performed on the backup nodes. This ensures that the primary node
and the backup nodes have a similar environment.
NOTE Repeat the above steps for each node of the cluster that is different
from the primary host.
3. Cluster Node Configuration - This section consists of steps performed
on all the cluster nodes, regardless if the node is a primary node or a
backup node.
NOTE Repeat the above steps for each node of the cluster including the
primary host.
4. External Application Server Host Configuration - This section
consists of steps performed on any host outside of the cluster that
runs another instance of the SAP component.