Managing Serviceguard Extension for SAP, December 2007

Step-by-Step Cluster Conversion
SAP Preparation
Chapter 3 111
_ER = er.sap$(SAPSYSTEMNAME)_$(INSTANCE_NAME)
Execute_01 = immediate rm -f $(_ER)
Execute_02 = local ln -s -f $(DIR_EXECUTABLE)/enrepserver $(_ER)
Start_Program_00 = local $(_ER) pf=$(_PF) NR=$(SCSID)
For kernel 7.00 or higher the last line can slightly differ if automatic
restarts of failed replications are required:
Restart_Program_00 = local $(_ER) pf=$(_PF) NR=$(SCSID)
The DIR_CT_RUN in these profiles should equal the value of DIR_CT_RUN
(if specified) or DIR_EXECUTABLE from the [A]SCS instance profile. It is
essential that the binaries from [A]SCS and ERS instances are from the
same binary set.
RE110 Replicated Enqueue Conversion:
The lock shadow file written by the enqueue replication can be read by
the enqueue server running in the [A]SCS instance after failover. To
enable this, the following line is required in the instance profile of the
[A]SCS instance.
enque/repl/shadow_file_name =
/usr/sap/<SID>/ERS<INSTNR>/data/SHM_FILESYS_BACKUP