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Note

When you enable RA-GRS, the system will give you a secondary location.

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  • Resource Groups and Virtual networks are required in the DR region.

  • Read a replica of the Flexible server that should be created in the DR region.

  • All the other disaster resources should be created in the DR region.

  • The service principle attached to the Databricks cluster should have storage blob data contributor permission on the above-created storage/container.

  • To create a read replica of the Postgres Flexible Server, an existing Virtual Network peered with the Primary region’s Virtual Network is required in the DR region.

  • A subnet with delegation to flexible Servers in the Virtual network of the DR region is required.

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The following image depicts the Primary region as Central US and the DR region as East US 2.

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Azure provides a failover mechanism where the Storage Account shifts to the Secondary region in case of a disaster. Still, this feature is currently unavailable for the Storage Accounts with Hierarchical namespace enabled, and it's a prerequisite in Kyvos to use a Storage Account with Hierarchical namespace enabled.

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