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

Step-by-Step Cluster Conversion
Linux Configuration
Chapter 3112
NOTE Repeat the above steps for each host that has an external application
server installed.
Performing some of the iterations in parallel is fine, just use caution in
any complex setup situation.
Directory Structure Configuration
NOTE The steps in this section are only performed once on the primary host.
The main purpose of this section is to ensure the proper LVM layout and
the right distribution of the different file systems that reside on shared
disks.
Logon as root to the system where the SAP Central Instance is installed.
If the database is installed on a different host, also open a shell as root on
the database machine.
IS009 Installation Step:
All SAP Instances (CI, SCS, ASCS, D,…) must have instance numbers that
are unique for the whole cluster.
Exceptions are instances that share instance numbers with a replication
instance. For a clustered instance with instance number <INSTNR>
execute the command:
ls -d /usr/sap/???/*<INSTNR>|grep -v REP
It should not reply any match on all nodes. Otherwise refer to the SAP
documentation how to change instance IDs for the relevant instance
type. It might be simpler to reinstall one of the conflicting instances.