Comments on: Using Activation Policies to Prevent Database Copies Mounting in Other Sites

By: Gajendra Kumar

Gajendra Kumar — Wed, 01 Mar 2023 16:29:08 +0000

Hi, we facing a issue in DAG, previously we having two member in dag and recently we add new member from dr location. now db can move and activated from exchange01 to dr exchange and dr to exchange02, cant activate on exchange02, but when we shutdown exchange01, db moved to exchange02 and mount successfully as exchange01 up, they move backed. we not able to activate on exchnage02. can you help for find cause and remedy for same

By: Wolkan

Wolkan — Wed, 15 Feb 2023 12:30:58 +0000

Hi Paul,
Should the Dr side also have a witness server?
Thanks

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By: Andre

Andre — Wed, 12 Jun 2019 05:56:27 +0000

Hi Paul,

I have two sites, Primary Site and DRC Site.
EXC01 and EXC02 in Primary Site.
DRCEXC01 and DRCEXC02 in DRC Site.
I have one DAG with all member server exchange.
I set DatabaseCopyAutoActivationPolicy ‘IntrasiteOnly’ in server DRC.

I can manually switchover from Primary Site to DRC Site. But status of Database Copy in Server DRC ‘DisconnectedAndResynchronizing’ and also index state is failed.

What should I do?

Thanks.

By: Duwei

Duwei — Tue, 06 Nov 2018 09:05:19 +0000

Hi Paul：
I have two sites, A-Site and B-Site
A-MBS01,A-MBS02 in A-Site
B-MBS01,B-MBS02 in B-Site
All Server Memberof same DAG
I set DatabaseCopyAutoActivetionPolicy IntrasiteOnly
When All Server well, I can manually switchover DB01 from A-site to B-Site
but if A-MBS01 shutdown together with A-MBS02,will prompt the index to fail. I can’t Manually switchover DB01 to B-Site
what should I do?

Thank for you help

By: Keith

Keith — Wed, 13 Dec 2017 18:39:15 +0000

Question —

If you run this on an Exchange 2016 server:
Set-MailboxServer -Identity XX –DatabaseCopyAutoActivationPolicy Blocked

Then run:
Get-DatabaseAvailabilityGroup -Status | FL Name,ServersInMaintenance

It displays that the server is in Maintenance Mode?
Setting the DatabaseCopyAutoActivation Policy back to Unrestricted displays that nothing is in maintenance mode.

Running the same CMDlets on an Exchange 2010 server shows nothing is in Maintenance Mode.

Odd?

By: Paul Cunningham

Paul Cunningham — Wed, 24 May 2017 02:11:22 +0000

In reply to Talha Monis.

Neither is better or worse, they are for different scenarios.

Suspending a lagged database copy from activation is applicable to lagged copy scenarios if you want to prevent your lagged copies from auto-activating.

Setting activation policies on a mailbox server is used to control whether or not any database copy on that server can activate.

By: Talha Monis

Talha Monis — Mon, 22 May 2017 08:02:42 +0000

Hello Paul,
I have a question, whether to use this method or the method described in your other article: https://www.practical365.com/exchange-server/exchange-server-2013-lagged-database-copies-action/ Using the command: Suspend-MailboxDatabaseCopy -ActivationOnly
Which is better?

Thanks!