january 21, 2009 migrating an 11i database to linux – tips, tricks & gotchas mark morgan dba...

January 21, 2009

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

Mark Morgan

DBA Consultant

siMMian systems, inc.

415-585-4242

[email protected]

January 21, 2009 Mark Morgan siMMian systems, inc.

Migrating an 11i Database to Migrating an 11i Database to LinuxLinux

• Overview• Project Definition• Process Overview and Detail• Post Migration Tips and Tricks


Project Definition: Why Linux?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


Project Definition: GoalsProject 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


Project Definition: InfrastructureProject 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


Project Definition: DatapumpProject 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


Process OverviewProcess 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


Process Overview: Build Linux Process Overview: Build Linux EnvironmentEnvironment

• 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


Process Overview: Create Process Overview: Create Target DatabaseTarget 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



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)



• Create init.ora

• Create the target database• auclondb.sql from R12 patch 6924477• edit and run aucrdb.sql• autoextend datafiles• disable archive logging



• 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


Process Overview: Prepare Process Overview: Prepare the Source Databasethe 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)


Process Overview: Prepare Process Overview: Prepare the Source Databasethe 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>


Process Overview: Export Process Overview: Export the Source Databasethe Source Database

• 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 Process Overview: Export the Source Databasethe 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)


Process Overview: Import the Process Overview: Import the Target DatabaseTarget 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


Process Overview: Import the Process Overview: Import the Target DatabaseTarget 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


Process Overview: Update the Process Overview: Update the Target DatabaseTarget 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)


Process Overview: Update Process Overview: Update the Target Databasethe 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


Process Overview: Post Process Overview: Post Migration TipsMigration 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


Process Overview: Post Process Overview: Post Migration TipsMigration 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


Q & AQ & A

Mark Morgan

DBA Consultant

siMMian systems, inc.

415-585-4242

[email protected]

january 21, 2009 migrating an 11i database to linux – tips, tricks & gotchas mark morgan dba...

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