I have done a lot of work with Dataguard in just about any conceivable
scenario. The issue you mention, force logging, is the only place where
there could in theory be an impact on performance, Even that can be
prevented with proper configuration of your redo logs. I have never,
however, seen dataguard have a noticeable impact on performance.
On Tue, Nov 14, 2017 at 2:57 AM, Stefan Koehler <contact@xxxxxxxx> wrote:
you may want to have a look at this white paper: http://www.oracle.com/
It is about Oracle 10g and there have some enhancements in the meantime
but it includes impact analysis / results.
Independent Oracle performance consultant and researcher
Jack van Zanen <jack@xxxxxxxxxxxx> hat am 14. November 2017 um 04:21geschrieben:
Dataguard on the primary system?
I was wondering if anyone had done any testing on the overhead of
can most likely not accept a performance degredation of the nightly batch
We would like to setup dataguard for one of our systems and the business
the amount of nologging that is happening in the batch this could be a
Now I understand that we have to turn on force logging and depending on
considerable overhead, I am just wondering besides this what the impacts
are in maximum performance and maximum availability and maximum protection
mode. I can turn on force logging without having to set up dataguard.
Let's assume for now that the network can keep up with the changes.....
Jack van Zanen