I have a global DynamoDB table that is currently replicated across 3 regions (eu-west-1, eu-west-2, eu-central-1).
As part of a PoC piece of work I am looking to use AWS Backup to schedule automated backups, I was wondering what the best practice for this was?
Is it acceptable to take backups of a single region, i.e only schedule the backups for the table in eu-west-1? Then when it comes to recovering the table, I can go through the process of first restoring to a non-global table, then adding replica's.
Or is it better practice to ensure all region's tables are backed up at the same time?
I would suggest that you backup from a single region (perhaps if you have a primary region for writes use this.
If you restore the DynamoDB table, it needs to create a new DynamoDB table resource. Once this is restored you would then add your global tables which would replicate the data currently stored in the restored DynamoDB table.
By having multiple backups, you would need to have a strategy to preprocess for any differences between all regions your table exists.