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Release 11 i Workshops Release 11 i … Please Add RAC

Release 11 i Workshops Release 11 i … Please Add RAC. Session Leader Kevin Dahl, Solution Beacon. TRAIL to TEXAS sm. Release 11 i Workshops San Ramon, CA • Worthington, MA • Los Angeles, CA • St. Louis, MO • Orlando, FL www.solutionbeacon.com. Introduction. The Challenge

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Release 11 i Workshops Release 11 i … Please Add RAC

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  1. Release 11i WorkshopsRelease 11i… Please Add RAC Session Leader Kevin Dahl, Solution Beacon TRAIL to TEXASsm Release 11i Workshops San Ramon, CA • Worthington, MA • Los Angeles, CA •St. Louis, MO • Orlando, FL www.solutionbeacon.com

  2. Introduction • The Challenge • Customer wanted to run Release 11i and could only afford to be down 5 minutes • The 50,000 Foot Solution • Implement SUN Cluster 3.0 on 2 nodes • Implement 11i with 9i RAC • Utilize 2 apps servers

  3. Introduction OVERVIEW Install SUN Cluster 3.0 Install 11i Install 9i Upgrade 8i to 9i Configure RAC

  4. Choosing the Oracle Software • 11i and RAC • Customer decided Release 11i would best meet their software needs • Explained that Oracle9i Real Application Clusters (RAC) was an architecture that allowed multiple instances to access a shared database of datafiles • Customer was shown that Oracle9i RAC would meet their 5 minutes down time requirement

  5. Choosing the Hardware • What was chosen? • SUN V880s. 2 clustered nodes for backend, and 2 non-clustered nodes for middle tier • A T3 storage array is in the same storage enclosure as the SunFire V880. That means there are two T3 storage arrays connected via an optical hub. The arrays provide both storage that is local to a given database server and storage that is shared between the two database servers

  6. Implementation – Hardware

  7. Implementation – SUN Cluster 3.0 • Install SUN Cluster 3.0 (SUN did this) • A cluster is a collection of loosely coupled computing nodes that provides a single client view of network services or applications, including databases, web services, and file services • Each cluster node is a standalone server that runs its own processes. These processes can communicate with one another to form a virtual single system

  8. 11i RACLeaving the Overview – The Detail

  9. Implementation – Release 11i • Install Release 11i via Rapidwiz • 2-tier • post install steps • backed up database

  10. Get 11i Ready for 9i • Applied Interoperability Patch • This patch is necessary for Oracle9i to be used in place of Oracle8i when using Release 11i • The patch number is 1833692

  11. Install Oracle9i (9.0.1) • runInstaller • chose enterprise installation type • did NOT install a database • Modify init.ora and iflecbo.ora • copied init and ifilecbo and modified as follows: • remove obsolete parms • set aq_tm_processes = 0 • set job_queue_processes = 0

  12. Install Oracle9i (9.0.1)... • Modify init.ora and iflecbo.ora... • Set the parameter _SYSTEM_TRIG_ENABLED to FALSE • change ifile entry in the init.ora to point to new location • db_block_buffers= (at least 2000) • shared_pool_size= (at least 150MB) • java_pool_size= (at least 20MB) • cluster_database=false • event="10619 trace name context forever, level 1" • event=”10932 trace name context level 32768“ • event=”10933 trace name context level 512“ • event=”10943 trace name context level 16384“

  13. Upgrade Oracle9i • 9.0.1 db to 9.0.1.3 (1/03 upgraded to 9.0.1.4) • note these are the Oracle9i binaries just installed -- not the Release11i db installed (it’s Oracle8i) • done via patch 2271678 • DO NOT PERFORM any sql scripts, database update steps or POST INSTALL STEPS NOW -- DO THOSE AFTER THE 8.1.7.3 DATABASE IS UPGRADED

  14. Upgrade Apps 8i to 9i • 8.1.7.3 db to 9.0.1.3 • include 9.0.1.3 home in ORACLE_HOME, PATH, LD_LIBRARY_PATH • start db restrict using modified init.ora • run upgrade script u0801070.sql (runs several hours) • run $ORACLE_HOME/rdbms/admin/utlip.sql because db was moving from 32 to 64 bit • shutdown Oracle9i db

  15. Upgrade Apps 8i to 9i • 8.1.7.3 db to 9.0.1.3... • Re-adjusted init.ora file • Changed _system_trig_enabled = TURE • O7_DICTIONARY_ACCESSIBILITY=TRUE • Optimizer_features_enable = 9.0.1 • restarted db • ran relevant scripts per Oracle9i migration manual • Jserver, XDK for java, Session Namespace, CORBA and OSE, jsp, oracle spatial, intermedia, oracle text • ran post install steps per patch 2271678

  16. Upgrade Apps 8i to 9i • 8.1.7.3 db to 9.0.1.3... • Copy/Modify the listener.ora and tnsnames.ora to reflect Oracle9i locations • reset the following in init.ora • set aq_tm_processes parameter = 1 • set job_queue_processes = 2

  17. More 11i Adjustments for 9i • Remove from applora.txt _complex_view_merging _optimizer_mode_force _optimizer_undo_changes _or_expand_nvl_predicate _ordered_nested_loop _push_join_predicate _push_join_union_view _sort_elimination_cost_ratio _use_column_stats_for_function always_anti_join always_semi_join optimizer_percent_parallel

  18. More 11i Adjustments for 9i ... • Perform object maintenance • Compile all apps objects • Recreate grants and synonyms (adadmin) • Increase MAXINSTANCES parameter • to change this parameter, the database control file needs to be recreated, MAXINSTANCES parameter modified and the create control file sql executed • shutdown/backup DB

  19. Add RAC • Raw files are required • shutdown db • cooked files must become raw • shared disk volumes must be configured for • database files • redologs • control files • existing cooked files copied to raw locations • the above was done with a combination veritas and dd commands

  20. Add RAC... • Modify init.ora…node 1 • modified init.ora for RAC • maxinstances=2 (customer had 2 nodes) • cluster_database=true • instance_name=mcprod1 • instance_number=1 • thread=1 • local_listener = "(address=(port=1522)(protocol=tcp)(host=sundb1))"

  21. Add RAC... • Change db file locations…node 1 • create a sql script that will alter the location of the database files to reflect the new raw locations • startup the database mount • run the alter sql created above

  22. Add RAC... • Modify init.ora…node 2 • ensure instance is shutdown • modified init.ora for RAC • maxinstances=2 (customer had 2 nodes) • cluster_database=true • instance_name=mcprod2 • instance_number=2 • thread=2 • local_listener = "(address=(port=1522)(protocol=tcp)(host=sundb2))"

  23. Add RAC... • Configure listener.ora on node 1 mcprod1 = (DESCRIPTION = (LOAD_BALANCE = OFF) (ADDRESS = (PROTOCOL = TCP)(HOST = sundb1)(PORT = 1522)) ) SID_LIST_mcprod1 = (SID_LIST = (SID_DESC = (ORACLE_HOME = /u20/oracle/mc11idb) (SID_NAME = mcprod1)))

  24. Add RAC... • Configure listener.ora on node 2 mcprod2 = (DESCRIPTION = (LOAD_BALANCE = OFF) (ADDRESS = (PROTOCOL = TCP)(HOST = sundb2)(PORT = 1522)) ) SID_LIST_mcprod2 = (SID_LIST = (SID_DESC = (ORACLE_HOME = /u20/oracle/mc11idb) (SID_NAME = mcprod2)))

  25. Add RAC... • tnsnames.ora mcprod2= (description= (address=(protocol=tcp)(host=sundb2)(port=1522)) (connect_data=(service_name=mcprod))) mcprod1= (description= (address=(protocol=tcp)(host=sundb1)(port=1522)) (connect_data=(service_name=mcprod)))

  26. Add RAC... • Tnsnames.ora… mcprod= (description=(load_balance=off)(failover=on) (address_list= (address=(protocol=tcp)(host=sundb1)(port=1522)) (address=(protocol=tcp)(host=sundb2)(port=1522)) ) (connect_data=(service_name=mcprod) (failover_mode=(type=select)(method=basic) (backup=mcprod2))))

  27. Add RAC... • Start Instances and APPS • started instance 1: startup parallel • added redo thread for instance 2 • started instance 2: startup parallel • started relevant apps processes on db tier • started relevant apps processes on app tier

  28. Add RAC... • A virtual middle tier • Round robin dns was implemented because this customer had 2 apps boxes; Round robin dns requires adjustments to dns entries resulting in the ability to access either apps server with the same name; Later, this was replaced with Big IP • Parallel Concurrent Processing • Concurrent processing was parallelized according the instructions in the system administration guide for Release 11i and MetaLink note 185489.1; In addition, a transaction manager should be setup via MetaLink note 240818.1

  29. Conclusion • The process is complex • Release 11i increases the complexity of implementing RAC • RAC increases the complexity of managing Release 11i (use oem and veritas volume mgr) • Attention getters • Parallel concurrent processing • Middle tier load balancing • Management of raw files

  30. References • Sources used for this presentation • metalink note 162091 – Interoperablility Notes: Oracle Applications Release 11i with Oracle9i Release 9.0.1 • metalink note 183649.1 – Database upgrade from 32 to 64 bit (This note was written for Oracle8i - ensure you ignore items that no longer apply to Oracle9i • Oracle White paper by Ahmed Alomari of Oracle Corporation: Migrating Your E-Business Suite Single Instance to Real Application Clusters (RAC) • Oracle9i Database Migration Manual, Part Number A90191-02 (Manual upgrade section) • several tars

  31. Q&A Hope you enjoyed this Release 11i session! Remember: KISS Keep It Simple and Supportablesm Kevin Dahl kdahl@solutionbeacon.com www.solutionbeacon.com

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