That’s great thank you for the information
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On Sep 9, 2022, at 3:20 PM, Andy Sayer <andysayer@xxxxxxxxx> wrote:
I would:
Connect via dgmgrl
Show configuration when primary is 'DB_B';
Confirm that redo goes from DB_B to DB_C (and DB_A but we’ll be removing that
later).
If there’s no route then
Edit database 'DB_B' set property redoroutes = '(LOCAL:DB_C)';
And confirm again
If happy, do
Validate database verbose 'DB_B';
And if happy
Switchover to 'DB_B’;
Once switchover complete and you’ve confirmed DB_C is being updated. Remove
DB_A from all redoroutes on B and C (C should look similar to B).
Disable database 'DB_A';
Remove database 'DB_A';
Then you should be okay to shut down DB_A.
Thanks,
Andy
On Fri, Sep 9, 2022 at 1:04 PM, Mike Killough
<mwkillough@xxxxxxxxxxx<mailto:mwkillough@xxxxxxxxxxx>> wrote:
Sorry for the repeat first send said failed but it didn’t.
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On Sep 9, 2022, at 3:01 PM, Mike Killough
<mwkillough@xxxxxxxxxxx<mailto:mwkillough@xxxxxxxxxxx>> wrote:
Ok so I could do a switchover to B and C and A become standbys, then remove A
from the configuration before shutting it down and closing the data center? No
hard failover. Thanks
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On Sep 9, 2022, at 2:32 PM, Andy Sayer
<andysayer@xxxxxxxxx<mailto:andysayer@xxxxxxxxx>> wrote:
Instead of doing a failover, you would need to do a switchover. You should set
up your redoroutes in advance in dgmgrl. You should also use this to test the
configuration using the
Show configuration when primary is DB_B.
Syntax
Remove the old server from the redo routes before getting rid of it.
Hope that helps,
Andy
On Fri, Sep 9, 2022 at 11:51 AM, Mike Killough
<mwkillough@xxxxxxxxxxx<mailto:mwkillough@xxxxxxxxxxx>> wrote:
Currently we have a primary database (DB_A) and 2 standbys (DB_B & DB_C). We
are planning on hard failing over to one of the standby databases to retire the
current primary. To protect the future standby when it becomes primary, we
would like to be able to have a standby right away if possible. When we fail
over to DB_B, is there a way to make DB_C immediately be the standby for DB_B?
Mike Killough
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