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Oracle Backup Consulting

Oracle Certified BC consultants are expert in all areas of Oracle backup consulting, including Oracle disaster recovery consulting.  We provide Oracle backup support according to your budget and tolerance for un-planned outages.  We offer consulting for the following areas:

  • Strategic Oracle data integrity backup consulting
  • Hot site Oracle backup
  • Oracle cold-backup configuration with RMAN
  • Oracle hot-backup configuration with RMAN
  • Oracle failover with Oracle standby database
  • Oracle Data guard backup
  • Oracle Streams and Shareplex replication
  • Oracle backup with Oracle Grid and Real Application Clusters (RAC)

We also provide expert Oracle consulting for backup & recovery infrastructure including:

  • Backup retention periods and generation management

  • Off-site backup storage techniques

  • Duplexing backup media

  • Choice of tape management system software

  • Hot-site services

  • Third-party backup management software

 

Client requirements:

The client agrees to follow accepted standards of Oracle recovery administration.  This includes:

  • Install and configure all backup & recovery components in the test databases
     

  • Use appropriate Oracle tools (Recovery Manager, Oracle DataGuard, Oracle Streams) in accordance with Oracle documentation
     

  • Allow a full production recovery test and sign-off

BC warrants that all work will be done by Certified Oracle professionals and that BC will fully test the production recovery mechanism which will be approved by client before use in their production production database.

There are many external environmental factors that may prevent a database recovery including but not limited to:

  • Failure of tape management system

  • Failure of backup media

  • Failure of operating system utilities

  • Human error (operator mounts incorrect tape)

  • Failure to re-test recovery after relevant system changes

Hence, BC will not warranty the recoverability of the database after completion of client acceptance testing.

 

Types of Oracle Backup Systems:

BC provides all proven methods of Oracle backup and recovery mechanisms.  These include:


Cold Oracle Backup

  • Advantages

    • Easy to configure

    • Simple architecture
       

  • Disadvantages

    • Downtime during backup

    • Long recovery time (1 hr - 8 hrs, depending on database size)

    • Requires tape management system (Legato, ADSM, Veritas)


Hot Oracle Backup

  • Advantages

    • No downtime during backup
       

  • Disadvantages

    • DBA effort required to configure RMAN and TMS

    • Long recovery time (1 hr - 8 hrs, depending on database size)

    • Requires tape management system (Legato, ADSM, Veritas)


Standby Database (Oracle9i DataGuard)

  • Advantages

    • No downtime during backup

    • Fast recovery (15-45 minutes)
       

  • Disadvantages

    • DBA effort required to configure FTP and dataguard scripts

    • Extra DBA management for standby database

    • Requires duplicate disks and server space


Oracle Flashback Recovery

  • Advantages

    • No downtime during backup

    • Fast recovery (1-2 minutes)
       

  • Disadvantages

    • DBA effort required to configure online redo logs

    • Requires extra disk for online redo logs


Replicated Database (Oracle Streams, Quest Shareplex)

  • Advantages

    • No downtime during backup

    • Fast recovery (1-5 minutes)

    • Replicated system can be used for limited queries
       

  • Disadvantages

    • DBA effort required to configure replication mechanism

    • Extra DBA management of replicated database

    • Requires duplicate disks and server

    • Requires additional software licenses


RAC Continuous Availability (Real Application Clusters)

  • Advantages

    • True continuous availability

    • Each RAC node can be used by system

    • Almost infinite system scalability by adding nodes
       

  • Disadvantages

    • DBA effort required to configure TAF (Transparent application failover)

    • Extra DBA management of RAC nodes

    • Requires duplicate servers

    • Requires RAC license

 

 

Burleson Oracle backup support consulting provides Oracle backup & disaster recovery services.

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Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  

and include the URL for the page.


                    









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