Internals and Performance Tuning excites him, and also gives him sleepless nights at times, simply because he is not a genius, but quite a hard worker and does not give up. This is what you call a side-by-side upgrade. There is less risk and the ability to instantly fall back. While it is rare that the SQL Server in-place upgrade process fails, if it does the fall back usually requires a full restore of the server the database is running on AND a restore of the databases themselves.
This can be stressful and time consuming, with some serious downtime. Even if everything goes well, there will still be downtime during the upgrade. With a migration, once the new instance of SQL Server is up and running, a backup of the original databases can be restored and upgraded , then tested. If all tests go well, a final restore from the source database to the target database is done and the new server assumes the identity or role of the original server this can be done through MCSC, NLB, DNS or just renaming servers; it depends on your environment.
This is a process with significant risk and effort. Your email address will not be published. Save my name, email, and website in this browser for the next time I comment.
Skip to content. Usually, we will upgrade the database without changing the physical server. Means, in the existing server itself we will upgrade the DB to new release. To continue support with Oracle because Oracle will not support if you have a license of unspported version. Process of changing OS platform for a database server. For example, moving a database from Solaris server to Linux server, windows to Solaris etc.
Ideally in most of the migration projects, there will be a change in physical server i. Many a times, migration also involves upgrade. For example, there is a In this case, it involves both migration because you are changing the platform and upgrade because database release is changing.
This entry was posted on April 3, at PM and is filed under upgradation. Tagged: diff between oracle upgradation and migration , diff between upgrade and migration , difference between upgradation and migration , oracle migration , oracle upgradation , oracle upgrade , upgradation vs migration , upgrade vs migrate. You can follow any responses to this entry through the RSS 2. You can leave a response , or trackback from your own site. Good post. Really usefull. You are commenting using your WordPress.
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