Re: Block Change Tracking at Switchover - Version Dependency?

Hello

I can't find this in the documentation. Is somebody able to point me in
> the right direction please?
>

I was not able to find it as well.
It is documented in the following MOS note, though: Bug 18610799 - data guard broker does not manage block change tracking during role switch (Doc ID 18610799.8)
https://support.oracle.com/rs?type=doc&id=18610799.8

Best regards,
Mikhail Velikikh

On Fri, 7 Aug 2020 at 16:24, Charlotte Hammond <dmarc-noreply_at_freelists.org> wrote:

>
> Hello
>
> I'm looking for a quick sanity check on Block Change Tracking behavior on
> switchover.
>
> In our setup we don't have ADG so we only intend to have BCT on the
> primary.
>
> On 11g databases this seems to be a manual process. If we do nothing the
> BCT remains enabled on the old standby and disabled on the new primary (not
> what we want - so we have to manually disable/enable accordingly).
>
> On 18c databases this seems to automatically follow the switchover. The
> BCT is automatically disabled on the old standby and automatically enabled
> on the new primary.
>
> I can't find this in the documentation. Is somebody able to point me in
> the right direction please?
> I don't want to just rely on the above experimentation as there are
> obviously costly licence implications so want to be sure I understand what
> is meant to be happening in both cases.
>
> Thank You!
>
> Charlotte
>

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