Managing Serviceguard Extension for SAP on Linux (IA64 Integrity and x86_64), April 2009

INSTANCE_NAME=D<INSTNR_2>
SAPSYSTEM=<INSTNR_2>
rdisp/vbname = <DRELOC>_<SID>_<INSTNR_2>
SAPLOCALHOST=<DRELOC>
SAPLOCALHOSTFULL=<DRELOC>.domain
The exact changes depend on the individual appearance of the file for each installation. The startup profile
is also individual, but usually can be created similar to the default startup profile of any Dialog Instance.
Here is an example template for a startup profile START_D<INSTNR_2>_<DRELOC>:
#-----------------------------------------------------------------------
SAPSYSTEMNAME = <SID>INSTANCE_NAME = D<INSTNR_2>
#-----------------------------------------------------------------------
# start SCSA
#-----------------------------------------------------------------------
Execute_00 = local $(DIR_EXECUTABLE)/sapmscsa -n\ pf=$(DIR_PROFILE)/<SID>_D<INSTNR_2>_<DRELOC>
#-----------------------------------------------------------------------
# start application server
#-----------------------------------------------------------------------
_DW = dw.sap<SID>_D<DRELOC>
Execute_01 = local rm -f $(_DW)
Execute_02 = local ln -s -f $(DIR_EXECUTABLE)/disp+work $(_DW)
Start_Program_01 = local $(_DW) pf=$(DIR_PROFILE)/<SID>_D<INSTNR_2>_<DRELOC>
#-----------------------------------------------------------------------
# start syslog send daemon
#-----------------------------------------------------------------------
_SE = se.sapRA1_D51Execute_03 = local rm -f $(_SE)
Execute_04 = local ln -s -f $(DIR_EXECUTABLE)/rslgsend $(_SE)
Start_Program_02 = local $(_SE) pf=$(DIR_PROFILE)/<SID>_D<INSTNR_2>_<DRELOC>
#-----------------------------------------------------------------------
Creation of Enqueue Replication Server Instance
This section describes how to add Enqueue Replication Services (ERS) to a system that has ASCS and/or
SCS instances. The ASCS (ABAP) or SCS (JAVA) instance will be accompanied with an AREP (ABAP) or REP
(JAVA) instance that keeps a mirror of the ASCS or SCS internal state in shared memory. As a result, no
information gets lost due to the fact of failing SAP System Central Services, if the Serviceguard Extension for
SAP on Linux package that includes [A]SCS fails over to the node that runs [A]REP during runtime.
Replicated Enqueue Conversion: RE070
Create a new mountpoint:
su - <sid>adm
mkdir /usr/sap/<SID>/ERS<INSTNR>
Replicated Enqueue Conversion: RE080
A volume group needs to be created for the ERS instance.
The physical device(s) should be created as LUN(s) on shared storage. Storage connectivity is required from
all nodes of the cluster that should run the Replicated Enqueue. For the volume group, one logical volume
should get configured.
Mount the new logical volume to the mountpoint created in RE060.
Replicated Enqueue Conversion: RE090
Create instance subdirectories in the mounted logical volume.
They will be switched between the cluster nodes later.
su - <sid>adm
cd /usr/sap/<SID>/ERS<INSTNR>
mkdir data log exe work profile
60 Step-by-Step Cluster Conversion