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How to synchronize instance level objects on Availability Group replicas

Hi,
This will be my first post!

The organization that I work for wants to start making use of Availability Groups for several of their services, but I have some concerns that I have not found a good solution to yet.
Mainly this is around instance level object synchronization across AG replicas and how I keep them up to date when a new object (login, linked server, Agent job, etc.) or updated, which looks to be even more tricky as you can't just check to see if the object exists on other replicas.
I'm currently thinking about using triggers on the object tables to try and catch the updates, but don't want to waste time if there is a product/solution out there that already exists.

Any advice would be greatly appreciated

Thanks !
Osbit
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  • Maurice_
    You are addressing the issue of synchronizing instance-level objects between replicas in an availability group (AG), and this is indeed a particular problem for many organizations. You are absolutely correct that objects such as logins, linked servers, and SQL Server Agent jobs are not automatically synchronized across AG replicas because they exist at the instance level, not the database level.
    Maurice_
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  • emmar00
    Are you familiar with PowerShell and dbatools? Sync-DbaAvailabilityGroup seems like what you are looking for.
    emmar00
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  • Jefrackoff

    Your concern about synchronizing instance-level objects across Availability Group (AG) replicas is valid since AGs only replicate database-level changes and don't automatically handle logins, linked servers, or SQL Agent jobs.

    Possible Solutions:

    1. SQL Server Agent Jobs & Scripts – You can create custom scripts to periodically sync logins, jobs, and linked servers between replicas.
    2. PowerShell Automation – Using PowerShell scripts, you can detect new/updated instance-level objects and sync them automatically across all AG nodes.
    3. Use an Existing Tool – There are third-party tools like Redgate SQL Compare or dbatools (PowerShell module) that can help automate the process.
    4. Triggers on System Tables? – While using DDL triggers on sys.server_principals, msdb.dbo.sysjobs, etc., is an idea, it could add overhead and doesn’t always capture all changes effectively.
    5. Distributed Transactions (If Required) – If cross-server transactions are a concern, Linked Server MSDTC transactions could be an option, but they come with performance considerations.

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