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Using GRS for Azure SQL Database Backups to a region with restricted access?

Mattias Andrén 0 Reputation points
2026-05-13T10:15:06.7533333+00:00

I´m wondering what happens if I setup Backup for an Azure SQL Database using GRS in Sweden Central without having applied to access for Sweden South (the paired but restricted region). Would the backup still be replicated to Sweden South? Would there be any issues when I need to restore from backup? I´m having a hard time finding any documentation regarding this setup, but I might be missing something, so if there is any documentation of how this is handled, please let me know.

Azure SQL Database

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  1. Q&A Assist
    2026-05-13T10:15:19.1433333+00:00
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    For Azure SQL Database, when backup storage redundancy is set to Geo-redundant (GRS or GZRS), backups are always replicated to the paired secondary region, regardless of whether that region is generally restricted for creating customer resources.

    From the backup platform perspective:

    • GRS “copies your data asynchronously three times to a single physical location in the paired secondary region.” This is an internal platform operation and does not require that customer access be enabled to that region.
    • Geo-restore for Azure SQL Database “uses geo-replicated backups as the source” and “you can restore a database on any logical server in any Azure region from the most recent geo-replicated backups,” as long as the database is configured with geo-redundant or geo-zone-redundant backup storage.

    Implications for the described scenario (Sweden Central with paired Sweden South):

    • Backups of the database in Sweden Central configured with GRS/GZRS will still be replicated to the paired region (Sweden South) by the platform.
    • Geo-restore will allow restoring the database to a logical server in any Azure region in the same subscription, not just the paired region. Therefore, even if direct customer access to Sweden South is restricted, geo-restore can be performed to another accessible region.
    • The main consideration is that GRS/GZRS implies data is stored in the paired region, which may affect data residency/compliance requirements. If data must not leave a single region, use LRS or ZRS instead and enforce this via Azure Policy (for example, using the built-in policy “Azure SQL DB should avoid using GRS backup”).

    There is no indication in the documentation that lack of customer access to the paired region prevents replication or breaks restore; the platform manages geo-replication and geo-restore as long as GRS/GZRS is configured.


    References:

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