Oracle Database Tips by Donald Burleson

Oracle10g Grid Computing with RAC
Chapter 15 - RAC Migration Topics

Upgrade SAP Software and Tools

Shared Library dboraslib  - For the correct use of transparent application failover, the SAP software library dboraslib must be replaced by a new version. This library is located in the directory /usr/sap/<SID>/exe/run together with all other executables for a specific SAP R/3 system. The new version of the library is compiled using the OCI 8 call interface to access the database, whereas the original version up to SAP R/3 4.6D was compiled and shipped using OCI 7 call semantics.

The new dboraslib must be requested from SAP directly. It is not currently part of any shipping CD set for release 4.6D. Additionally, it is not available on SAP´s service market place or through OCS.

The library must be replaced on all SAP R/3 application servers. Additional SAP R/3 application servers outside of the database cluster configuration may possibly use a different operating system.

The Oracle client software for Oracle9i must also be installed on every additional SAP R/3 application server. The Oracle software version used to build the shared library, dboraslib, and the installed Oracle client version must match.

BRTOOLS

BRTOOLS is the name for the suite of programs and utilities from SAP to administer the Oracle database, perform backup and recovery, as well as many other reorganization tasks.

For an Oracle Database 10g RAC configuration, replace these tools with the latest version shipped by SAP. The latest version is available on SAP´s service marketplace or through OCS.

Along with all the other executables for a SAP installation, BRTOOLS are located in the directory /usr/sap/<SID>/exe/run. BRTOOLS consist of the following set of files:

sapdba
brconnect
brrestore
brbackup
brrestore
brarchive

For more details see, Oracle white paper 'configuring SAP R3 4.6D for use with Oracle Database 10g RAC'

Get the complete Oracle10g story:

The above text is an excerpt from "Oracle 10g Grid & Real Application Clusters", by Rampant TechPress.  Written by top Oracle experts, Mike Ault and Madhu Tumma, this book has a complete online code depot with ready to use scripts. 

To get the code instantly, click here:

http://www.rampant-books.com/book_2004_1_10g_grid.htm