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Migrating an 11i Database to Linux – Tips, Tricks & Gotchas

Migrating an 11i Database to Linux – Tips, Tricks & Gotchas. Mark Morgan DBA Consultant siMMian systems, inc. 415-585-4242 morgan@simmian.com. Migrating an 11i Database to Linux. Overview Project Definition Process Overview and Detail Post Migration Tips and Tricks.

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Migrating an 11i Database to Linux – Tips, Tricks & Gotchas

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  1. Migrating an 11i Database to Linux – Tips, Tricks & Gotchas Mark Morgan DBA Consultant siMMian systems, inc. 415-585-4242 morgan@simmian.com

  2. Migrating an 11i Database to Linux • Overview • Project Definition • Process Overview and Detail • Post Migration Tips and Tricks Mark Morgan siMMian systems, inc.

  3. Project Definition: Why Linux? • Advantages • Lower Cost of Hardware • Performance • Lower Cost of Hardware • RAC • Lower Cost of Hardware • Disadvantages • Stability • Hidden Administration Costs • RAC Mark Morgan siMMian systems, inc.

  4. Project Definition: Goals • Replace HPUX hardware • Prepare for R12 upgrade • Improve upgrade performance • Long-term EBS compatibility • Database cleanup • Coalesce data • Purge metadata junk • Characterset conversion to AL32UTF8 • postponed to R12 upgrade • 10.2.0.4 minimum • 11i does not support AL32UTF8 • Minimum downtime Mark Morgan siMMian systems, inc.

  5. Project Definition: Infrastructure • 11.5.10.2 EBS • Installed as 11.0 / RDBMS 8.0 • Financials, OM, Manufacturing, HR, CRM • OATM • Recent ATG & TXK • RDBMS 10.2.0.3 64-bit • HPUX 64 bit • Linux Redhat 4 64 bit Mark Morgan siMMian systems, inc.

  6. Project Definition: Datapump • 362205.1 Export/Import Process for Oracle Applications Release 11i Database Instances Using Oracle Database 10g Release 2 • 454616.1 Export/Import Process for Oracle E-Business Suite Release 12 using 10gR2 • 402785.1 iSetup dependency with Deinstall and Reinstall of XMLDB • Transportable tablespaces not supported for EBS Mark Morgan siMMian systems, inc.

  7. Process Overview • Build Linux environment • Stage target database • Prepare source database • Export the source database • Import to the target database • Update the target database • Post migration tasks Mark Morgan siMMian systems, inc.

  8. Process Overview: Build Linux Environment • 416305.1 Oracle Applications Installation and Upgrade Notes Release 12 (12.0) for Linux (64-bit) • 169706.1 Oracle® Database on AIX®,HPUX®, Linux®,Mac OS® X,Solaris®,Tru64 Unix® Operating Systems Installation and Configuration Requirements • 339510.1 Requirements for Installing Oracle 10gR2 RDBMS on RHEL 4 on AMD64/EM64T Mark Morgan siMMian systems, inc.

  9. Process Overview: Create Target Database • Create 10g ORACLE_HOME • R12.0.4 installation media • 10g installation media • RDBMS patches • 10.2.0.3 / 10.2.0.4 • DST • CPUs Mark Morgan siMMian systems, inc.

  10. Process Overview: Create Target Database Datapump-specific patches • RDBMS • 5874989 (characterset) • 4352110 • 6855589 (corrects ORA-39125 if v8 database) • EBS Patches (unzip only) • 4872830 (should already be applied) • 7225862 (replaces 5873146) • 6723741 (R12) • 6342289 (R12) Mark Morgan siMMian systems, inc.

  11. Process Overview: Create Target Database • Create init.ora • Create the target database • auclondb.sql from R12 patch 6924477 • edit and run aucrdb.sql • autoextend datafiles • disable archive logging Mark Morgan siMMian systems, inc.

  12. Process Overview: Create Target Database • Create database objects (patch 7225862) • SYS: addb1020.sql • SYSTEM: adsy1020.sql • JVM: adjv1020.sql • Other: admsc1020.sql • Post-creation Tasks • Complete patch 6855589 readme • Verify SYSTEM grants • Verify XDB grants • Compile objects • Backup the new database Mark Morgan siMMian systems, inc.

  13. Process Overview: Prepare the Source Database • System downtime • Apply database preparation patch 7225862 to apps tier • Apply 6855589 to source RDBMS (including README steps) • update SYSTEM_PRIVILEGE_MAP (2 SQL statements) • Run preclones on both the source database and apps tiers • Record Advanced Queue settings • $AU_TOP/patch/115/sql/auque1.sql • (generates auque2.sql) Mark Morgan siMMian systems, inc.

  14. Process Overview: Prepare the Source Database • Create parameter file for tables with long columns • aulong.sql (6723741) • (aulongexp.dat is generated) • Remove rebuild index parameter in spatial indexes • select * from dba_indexes where index_type='DOMAIN' and upper(parameters) like '%REBUILD%'; • alter index <index name> rebuild parameters <parameters> Mark Morgan siMMian systems, inc.

  15. Create export directory filesystem Copy parameter file from $AU_TOP/patch/115/import/auexpdp.dat Create directory in database create directory dmpdir as '<DUMPDIR>'; Prepare XMLSchema objects for migration (doc 402785.1) Process Overview: Export the Source Database Mark Morgan siMMian systems, inc.

  16. Process Overview: Export the Source Database • Export the instance with expdp, using the above parameter file • Export tables with long columns using aulongexp.dat • Required SYS connection • Used 10.1 ORACLE_HOME (bug 4154125) Mark Morgan siMMian systems, inc.

  17. Process Overview: Import the Target Database • Create directory in target database • create directory dmpdir as '<DUMPDIR>'; • Import the users • impdp parfile=auimpusr.dat • verify tablespace quotas • verify user grants and privileges to sys/system objects • Import tables with long columns • Modify aufullimp.dat as aulongimp.dat • file=longexp • full=y • imp parfile=aulongimp.dat • Ignore errors for triggers Mark Morgan siMMian systems, inc.

  18. Process Overview: Import the Target Database • Import the Applications database instance • impdb parfile=auimpdp.dat (6723741) • expect ORA-31684, ORA-39111, compilation warnings, trigger errors and BISM constraint errors • Import triggers into the target database using standard import • create autrigimp.dat from aufullimp.dat (6723741) • connect as SYS • ignore=y • rows=n Mark Morgan siMMian systems, inc.

  19. Process Overview: Update the Target Database • Reset Advanced Queues • run auque2.sql generated above • Start the database listener • Run adgrants.sql • Grant create procedure privilege on CTXSYS • $AD_TOP/patch/115/sql/adctxprv.sql • Implement and run AutoConfig on database tier (165195.1) Mark Morgan siMMian systems, inc.

  20. Process Overview: Update the Target Database • Postclone applications tier(s) to point to new database • Gather statistics for SYS schema using adstats.sql • Re-create custom database links • Create ConText and Spatial objects • create custom dpost_imp.pl driver from 11i 4872830 and R12 6723741 • apply with adpatch • Rebuild XMLSchema Objects per doc 402785.1 Mark Morgan siMMian systems, inc.

  21. Process Overview: Post Migration Tips • Re-create missing CTXSYS objects • (427418.1, 372263.1, 141131.1, 459857.1) • adadmin • Compile flexfield data in AOL tables • Recreate grants and synonyms for APPS schema • Recreate HRV_PER_PEOPLE_V • Clear nodes and run autoconfig per doc 260887.1 Mark Morgan siMMian systems, inc.

  22. Process Overview: Post Migration Tips • Verify BISM Constraints • ALTER TABLE ADD CONSTRAINT • Compile invalid objects • Rebuild nptification queues using wfntfqup.sql • Gather statistics (optional) • Start applications tier • Syncronize Workflow • Create DQM indexes for Trading Community Mark Morgan siMMian systems, inc.

  23. Q & A Mark Morgan DBA Consultant siMMian systems, inc. 415-585-4242 morgan@simmian.com Mark Morgan siMMian systems, inc.

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