Re: RAC on extended distance clusteres

Carel-Jan Engel wrote:
> Bryan,
>
> I know you're quoting, it's probably not completely *your* opinion.
> I guess I missed an important announcement.
> When did Oracle start to support 'full rolling upgrades'?
> AFAIK, that's pretty much non-existent
>
> Best regards,
>
> Carel-Jan Engel

It sounds like a pretty delicate procedure, to say the least... I'm guessing it involves switching DG roles at the same time as applying patches. But in theory, it does make sense to me that SQL Apply (aka Steams) should make this possible.

 From the "What's New in Data Guard 10.1" chapter of the standard docs:

"Rolling Database Upgrades with SQL Apply -- "In a future patchset release of Oracle Database 10g, it will be possible to do a rolling upgrade using logical standby databases. The foundation for rolling upgrades is now implemented into the SQL Apply technology so that the primary database incurs minimal downtime when you upgrade Oracle Database software on each database in the Data Guard configuration. For example, using SQL Apply and logical standby databases, you will be able to upgrade the Oracle Database software from patchset release 10.1.0.n to the next database 10.1.0.(n+1) patchset release."

-- 
Mark Bole
http://www.bincomputing.com



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