Managing Serviceguard Extension for SAP on Integrity Linux, December 2005

Step by Step Installation of SGeSAP on Integrity Linux for SAP WAS Central Instances
Cluster Configuration
Chapter 2 61
IS570 Installation Step:
Specify the relocatable hostnames of the database and the Central
Instance in the parameters DBRELOC and CIRELOC. They will be the
same if you use the one package concept.
Specify the relocatable hostname in TRANSRELOC, the host from which
the mount to the transport directory /usr/sap/trans is initiated. This
might be the relocatable address of a SAPNFS package, in case a
dedicated NFS package exists. TRANSRELOC might also be equal to
DBRELOC, or to an address that belongs to another cluster or host.
Optional sap.config Parameters
Open the file ${SGCONF}/<SID>/sap.config with a text editor and edit
the section with optional configuration parameters to specify the
behavior regarding additional application servers. Additional application
servers can be started and shutdown with a CI package, but the success
of these operations is never considered criticial. It is also possible to
restart Application Servers as part of a failover of the Central Instance.
OS580 Optional Step:
The file sap.config contains four arrays that describe the additional
application servers of the system. Additional application servers are all
application servers that belong to the packaged SAP component and are
different from the Central Instance. Each array has one entry for each
application server. This is true whether the application server is running
on a node in the cluster or outside of the cluster.
In the ASHOST[*] array, specify the hostnames on which the application
servers reside. Never use a relocatable name, even if the host is part of
the cluster! Specify the Instance ID for each application server using the
ASNR[*] array.
You already specified the Instance ID of the Central Instance with the
parameter CINR.
Each index value n, ASNR[n] refers to the same application server as
ASHOST[n]. If the corresponding ASHOST entry specifies a host that is
part of the cluster, provide an ID that is different from the ID used by the
Central Instance.
Make sure that there is no other SAP Instance on the same host using
the same ID.