Minimal Downtime Option for Upgrading Oracle 9i/10G Databases to 11G

Posted in: Technical Track

This is just a “proxy” blog post with a new title. Yesterday, I published “Migrating your 10G database to ODA with minimal downtime“.  However, if you read it carefully, the upgrade process described isn’t ODA-specific. The only reason I used the title is the fact that the project I am involved in is Oracle Database Appliance (ODA) based.

The process can be used  for most 11G upgrade projects. Often, a hardware is updated at the same time as a database version. In such cases, we migrate a database from an original location to a new server upgrading the database version and sometimes changing operational system. If this is your situation, you can use the upgrade process to minimize the system’s downtime to 1 hour, independently from the size of the database you migrate. In fact, the upgrade process can be used for:

  • Upgrading Oracle database starting from version 9.2 to newer version
  • Upgrading Oracle platform to different “bitness” (32 bit to 64 bit)
  • Changing Oracle platform within a single “endian” (e.g. migrate from Windows to Linux) (2012.07.10 Yury: This options has limitations. Please read the note carefully. Thanks to Jan for pointing it out.)

All with a short downtime. Have a look and and keep it in mind for the next upgrade project!

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About the Author

Yury is a nice person who enjoys meeting and working with people on challenging projects in the Oracle space. He started to work as an Oracle DBA 14 years ago (1997). For the past 10 years (since 2001) his main area of expertise is Oracle e-Business Suite. Yury is an OCP 7,8,9,10g and OCM 9i,10g. He is a frequent presenter at Oracle related conferences such as Hotsos, UKOUG and AUOUG. Yury is a socially active person. Apart from Social Media (Twitter, Bloging, Facebook) he is the primary organizer of Sydney Oracle Meetup group (250 people). So if you happen to be in Sydney (Australia) drop Yury a message and stop by at one of his Meetups.

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