Installing the SAP primary application server instance
The following describes an installation under AIX®. Using Linux® is also possible and
supported.
For a Windows
application server installation, see the SAP Community article: SAP HA Installations on z/OS® and Windows application servers.
As previously mentioned, it is recommended to install an application server with its own virtual
host name. Under AIX, define a virtual
interface (vi<x> interface) and under Linux on IBM Z, define a
dummy0 device with the corresponding IP. The virtual host name and the
corresponding IP must be defined either in the DNS or locally in /etc/hosts on
all servers of the SAP system. The IP must be active before the installation starts.
To install SAP application servers (primary as additional application server) with a virtual
host name, call the
sapinst command with virtual host name parameter: ./sapinst SAPINST_USE_HOSTNAME=p570coh1vNote: Make sure that System Automation under
z/OS is not controlling the Java™ SCS during the primary application server installation. This
is because
SAPinst tries to start and stop the Java SCS during the installation procedure. This creates a problem if the Java SCS is already managed and kept highly available by System Automation then, and it can cause the primary
application server installation to fail.