oracle database 12c upgrade tools and best practices from oracle support agrim pandit principal...

Oracle Database 12c Upgrade Tools and Best Practices from Oracle Support

Agrim PanditPrincipal Software EngineerOracle Software SupportSeptember 30, 2014

Copyright © 2014, Oracle and/or its affiliates. All rights reserved. |

Copyright © 2014, Oracle and/or its affiliates. All rights reserved. | 3

Safe Harbor StatementThe following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.


Program Agenda

Why Upgrade ?

Overview and Concept

Upgrade Tools and Best Practices

Useful References for Upgrade

1

2

3

4


Why Upgrade To 12c Release 1 ?

Useful and Desirable FeaturesImprove PerformancePotential Cost SaverEasy Administration

Premier Support until July 2018Extended Support until July 2021

Save Extended Support Fee Patchset, PSU,SPU and other Bug fixes are available

New Features

Increase Support Length

Premier Support

Benefits of upgrading the database


Upgrade Vs Migration

UPGRADE

─ The process of changing the data dictionary contents of a database to reflect a newer release─ No User or Application data will be touched or modified ─ Independent of the size of the database ─ Major Release Upgrade : Upgrading from 11.2 to 12.1 ─ Patchset Upgrade :Upgrading from 12.1.0.1 to 12.1.0.2

─ Move to new OS ,hardware and character set conversation.─ Dependent on the size of the database

MIGRATION


Upgrade Methods DBUA (Recommended)

Manual Upgrade

Expdb/Impdp


12c Upgrade Path Direct or Indirect Path


Upgrade DocumentationDocumentation :http://www.oracle.com/technetwork/database/enterprise-edition/documentation/index.html

http://www.oracle.com/technetwork/database/enterprise-edition/documentation/index.html


Upgrade CompanionMOS Note 1462240.1 Oracle 12cR1 Upgrade Companion


Upgrade bloghttps://blogs.oracle.com/UPGRADE/

https://blogs.oracle.com/UPGRADE/


OTN upgrade pagehttp://otn.oracle.com/goto/upgrade

http://otn.oracle.com/goto/upgrade


Certification Database Sever and Platform certification


Software DownloadLocations

http://www.oracle.com/us/downloads/index.html

https://edelivery.oracle.com

https://support.oracle.com

http://www.oracle.com/us/downloads/index.html

https://edelivery.oracle.com/

https://support.oracle.com/rs?type=doc&id=1585343.1


Install the latest SoftwareReduce patching downtime:

─ Install the LATEST PATCHSET or BASE RELEASE

─ Apply the latest PATCH SET UPDATE for Unix and BUNDLE PATCH for Windows

─ Install the Binaries in new Oracle home . Recommended: OUT OF PLACE

─ Apply Interim Patches for Known issue

─ Patchset is complete installation software from 11.2.0.2 Onwards

─ The first PSU for 12.1.0.2 will be released on October 2014

Note 1454618.1 : Quick Reference to Patch Numbers for Database PSU, SPU(CPU), Bundle Patches and Patchsets




Upgrade Grid InfrastructureUpgrade Grid Infrastructure BEFORE upgrading the Oracle Database

Note 1579762.1 How to Upgrade to Oracle Grid Infrastructure 12c Release 1 and Known Issues

Oracle Grid Infrastructure Home

Oracle Database Server Home

Install the Grid Infrastructure in NEW Oracle home ( Out-of Place Upgrade)



Pre Upgrade ChecklistSource Oracle home

Invalid database OBJECTS in SYS and SYSTEM schemaInvalid database COMPONENTS SYS and SYSTEM does not have DUPLICATE OBJECTSCLUSTER_DATABASE is set to FLASE

HIDDEN parameter and EVENTS DEPRECATED parameter OBSOLETE database COMPONENTSRECYCLE BIN objects

Gather Statistics Preserve Statistics Backup of the Database

VALIDATE

REMOVE

CREATE


New Pre-Upgrade Information Tool :preupgrd.sql Upgrade SQL Automation

─ preupgrd.sql is introduced in 12c R1 ─ It has replaced utlu<nnn>i.sql─ Runs in the source Database ─ Generates Fix up scripts

─ preupgrade_fixups.sql─ postupgrade_fixups.sql


-preupgrade.log - preupgrade_fixups.sql - postupgrade_fixups.sql

Logs generated by preupgrd.sql

Prepare Source database Run Preupgrade Tool on the Source Database

Source DB Target DB

Copy preupgrd.sql &

Utluppkg.sql

Execute preupgrd.sql

Location: $ORACLE_BASE/cfgtoollogs/<SID>/preupgrade


Preupgrade Checks

Compatible Parameter Check $ORACLE_BASE/cfgtoollogs/<SID>/preupgrade/preupgrade.log $ORACLE_BASE/cfgtoollogs/<SID>/preupgrade/preupgrade_fixups.sql

OCM user existence check

Gather dictionary statistics


Remove Obsolete Components

$emctl stop dbcontrol SQL> @ ?/rdbms/admin/emremove.sql$emctl stop dbcontrol SQL> @ ?/rdbms/admin/emremove.sql

─ Enterprise Manager Database Control Repository is superseded in 12c By EM Express─ Remove EM repository─ It will be automatically removed during the catuppst.sql post-upgrade phase.

─ Remove Oracle UltraSearch before doing the upgrade ─ Oracle UltraSearch does not exist in Oracle Database 11.2 and onwards ─ For Oracle Database 10.2

SQL> @ ?/ultraserach/admin/wk0deinst.sql SYS password ‘‘ ‘‘SQL> @ ?/ultraserach/admin/wk0deinst.sql SYS password ‘‘ ‘‘


Oracle Label Security

SQL> @ ?/rdbms/admin/olspreupgrade.sqlSQL> @ ?/rdbms/admin/olspreupgrade.sql

─ Essential Step if Oracle Label Security and/or Database Vault was already in the database before upgrade─ Execute olspreupgrde.sql in source Database

─ Prepares the move of AUD$ table from SYSTEM to SYS.─ Processes the audit records to minimize downtime.─ Move records to an interim temporary table.


Time Zone VersionPre or Post Upgrade Actions

─ Default Time Zone Version 12c R1 is DST V18─ If Time Zone version at source database HIGHER than target database

─ Apply the Time Zone patch on target to match the source database version

─ If Time Zone version at source database LOWER than target database ─ Time Zone conversion need to be done post upgrade.

─ Most Recent Time Zone version is DST V22─ Time Zone definitions in $OH/oracore/zoneinfo

Note 1585343.1 Scripts to automatically update the RDBMS DST (timezone) version in an 11gR2 or 12cR1 database




Backup the Database ─ Take a backup of the Database. ─ Always create a valid and complete online backup with RMAN─ Test the restore and the recovery at least once.─ Make sure your fallback strategy covers during and after cases


Compatible Parameter─ Minimum COMPATIBLE parameter for 12c is 11.0.0. ─ Leave COMPATIBLE at the original value for a week before changing to 12.0.0.─ No way back once COMPATIBLE set to 12.0.0

Compatible 11.0.0 or higher is MUST

Compatible remain to 11.x.x

Downgrade NOT possible

Downgrade possible

SQL> alter system set compatible = '12.0.0' scope=spfile;SQL> Shutdown immediate ;SQL> conn / as sysdbaSQL> startup

SQL> alter system set compatible = '12.0.0' scope=spfile;SQL> Shutdown immediate ;SQL> conn / as sysdbaSQL> startup

─ Database restart is required to change the COMPATIBLE parameter later


Diagnostic Collection Script (dbupgdiag.sql)Note 556610.1: Script to Collect DB Upgrade/Migrate Diagnostic Information (dbupgdiag.sql)



New Upgrade Utility : catctl.plcatctl.pl

─ It is introduced in Oracle database server 12c R1─ It loads the data dictionary and components in PARALLEL─ Default Parallelism 4 ─ Maximum Parallelism 8

catctl.pl supported options


12c UpgradeStart the Database in UPGRADE mode using the 12c binaries

• Exit the sqlplus


12c Upgrade Parallelism • Start the upgrade on the Shell with catctl.pl with PARALLEL option .


12c Upgrade Logs

Upgrade is running with 8 Parallel processes

Total DB components upgrade time

─ Default log location is current working directory─ Use –l parameter to specify the log location─ One log file for each thread


Post Upgrade ChecklistTarget Oracle home

$ORACLE_HOME/rdbms/admin/utlrp.sql$ORACLE_HOME/rdbms/admin/utlu121s.sql

TIMEZONE version

SPFILE for PFILE Gather STATISTICSBACKUP of the database

EXECUTE

UPGRADE

CREATE


Post Upgrade Fixups

TimeZone Version Check

Gather Fixed Objects Statistics

$ORACLE_BASE/cfgtoollogs/<SID>/preupgrade/preupgrade.log $ORACLE_BASE/cfgtoollogs/<SID>/preupgrade/postupgrade_fixups.sql


Verify Upgrade Logs─ Review Upgrade logs and traces

─ DBUA logs $ORACLE_BASE /cfgtoollogs/DBUA/<SID>/upgrade<n>─ If ORACLE_BASE is set

$ORACLE_BASE /cfgtoollogs/DBUA/<SID>/upgrade<n>

─ If ORACLE_BASE is NOT set $ORACLE_HOME /cfgtoollogs/DBUA/<SID>/upgrade<n>

─ Manual upgrade logs ─ Location Specified using - l parameter of catctl.pl ─ Current working directory

─ Check alert_SID.log

─ utlu121s.sql output


Verify Upgrade ─ New successful upgrade status for CATALOG and CATPROC component

─ Run the utlrp.sql to change the status to VALID


Upgrade Status Summary Tool :utlu121s.sql


Useful References for Upgrade Note 1462240.1 Oracle 12c Upgrade CompanionNote 1515747.1 Oracle Database 12c Release 1 (12.1) Upgrade New FeaturesNote 1493645.1 Oracle Database 12c Release 1 (12.1) DBUA : Understanding New Changes With All New 12.1 DBUANote 1516557.1 Complete Checklist for Upgrading to Oracle Database 12c Release 1 (12.1) using DBUANote 1503653.1 Complete Checklist for Manual Upgrades to Oracle Database 12c Release 1 (12.1)Note 1516616.1 Oracle Database 12c Release 1 (12.1) DBUA in Silent mode







oracle database 12c upgrade tools and best practices from oracle support agrim pandit principal...

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