SAP Note 1102070 - Oracle RAC configuration for SAP running on AIX with GPFS

Component : Oracle Real Application Clusters (RAC) -

Solution : https://service.sap.com/sap/support/notes/1102070 (SAP Service marketplace login required)

Summary :
This SAP Note outlines the installation requirements for Oracle Release 10.2.0.2 and 10.2.0.4 on AIX 5L with GPFS 2.3 or 3.2, used in conjunction with SAP. It mandates that Oracle RAC database files, binaries for Oracle RDBMS, and Oracle CRS (Clusterware) be located on a shared cluster filesystem like GPFS. Specifically, the directories $ORA_CRS_HOME and $ORACLE_HOME must reside on GPFS filesystems. Additionally, configuration adjustments are detailed for parameters within Oracle CRS and GPFS to optimize performance and avoid node evictions. It highlights necessary alterations for SCSI-3 Persistent Reservation in GPFS 3.2 and adjustments to scheduler parameters in AIX for better Oracle RAC operations.

Key words :
made      $ora_crs_home/bin/crsctl stop crs      $ora_crs_home/bin/crsctl start crs-5 start crs, made      $ora_crs_home/bin/crsctl stop crs      $ora_crs_home/bin/crsctl start crs-4 start crs, modify diagwait      $ora_crs_home/bin/crsctl set css diagwait 18 -force-3 restart crs, modify misscount      $ora_crs_home/bin/crsctl set css misscount 200-3 execute crsctl, modify disktimeout      $ora_crs_home/bin/crsctl set css disktimeout 200-4 restart crs, gpfs filesystem     mv /oracle/crs/102_64/log /oracle/crs/102_64/log, node      $ora_crs_home/bin/crsctl stop crs-2 execute crsctl, step 1      $ora_crs_home/bin/crsctl start crsonly valid, /crs_local/log /oracle/crs/102_64/log-9 execute steps 1, tar file     tar -xvf /oracle/crs/102_64/log

Related Notes :

1228643Oracle Clusterware: Patches on top of Oracle 10.2.0.4
1171095Information about Oracle RAC 10.2
1010217Oracle CRS: Patches for RAC enabled SAP Systems
871735Current patch set for Oracle 10.2.0
84172810.2: Solutions for installation and upgrade problems
527843Oracle RAC support in the SAP environment