Oracle ebs db platform migration

1. Oracle EBS
database platform
Migration

2. Agenda
 Environment Details
 Plan of Action
 Typical Migration Process
 Checklist and information gathering
 Best practices
 Minimizing Downtime
 Reference Notes

3. Environment Details
 Instance Details –
- Current Environment Configuration.
- Number of Test ERP instances.
- EBS 12.1.3
- Database 12.1.0.2
- RAC 2 nodes cluster
- 2 node apps tier

4. Plan of Action
 Choosing correct migration approach
- Review current environment
- Database size, CPU, memory.
- Record downtime window timelines and estimates for Production.
- Endian Formats are different.
 Testing below factors before deciding better approach
- Export duration
- Datafiles copy for TTS
- NFS share to reduce dump files copy.
- Import duration
- Endian conversion duration
- Transparent Database encryption enabled?
- Parallel export and import
- Expdp/Impdp fine-tuning parameters

5. Briefing Migration Process
– Export/Import
 Prepare the source system (Solaris SPARC) - APPS NODE
- IOP Patches.
- expdp/impdp patch
- Generate scripts for expdp/impdp
- Spatial indexes
 Prepare the source system (Solaris SPARC) - DB NODE
- RDBMS pre-requisite patches
- Record Advanced Queue settings
- Synchronize Text Indexes
- Verify Directory - $ORACLE_HOME/nls/data/9idata
 Preparing Target environment (Linux x86-64), before
migration – DB NODE
- RDA Utility to make sure all pre-requisites are met.
- Install binaries
- Synchronize patch list with source Solaris SPARC instance.

6. Briefing Migration Process
– Export/Import (contd..)
- Setup instance using database prep scripts.
- Import database
 Export the source Release 12 database instance(Downtime
Starts here)
- Shut down apps tier.
- Fine-tune source before exporting dump.
- NFS share to reduce downtime
 Import the Release 12 database instance
- Verify parameter file before running import.
- Fine-tune destination before import
- Review and resolve errors during import.
 Update the imported Release 12 database instance
- Reset Advanced Queues
- Listener configuration
- Custom database links
- Autoconfig and post steps

7. Fine-Tuning and Downtime Estimation
 Fine-tuning Solaris SPARC environment
- Memory Parameters
- Tablespace check
- Expdp parameters (parallel to be set according to cpu cores)
- Gather Stats check
 NFS share fine-tuning
- Jumbo frames
- Fiber-optic channel
- Oracle recommended mounting options
 Fine-tuning Linux x86-64 environment
- RDA utility to make sure all pre-requisites are met.
- Memory parameters
- Tablespace check
- Impdp parameters (parallel, transform for skipping redo-generation)
- Init ora parameters

8. Reference Notes
- Oracle E-Business Suite Upgrades and Platform Migration(Note 1377213.1)
- Export/Import EBS release 12.0 or 12.1 with RDBMS 12c (Doc ID 1585256.1)
- Using AutoConfig to Manage System Configurations in Oracle E-Business Suite
Release 12 (Doc ID 387859.1)

9. Questions?