Account replication like GRS or RA-GRS is not meant to protect against accidental deletion. Changes to your data will get replicated to the paired region so you won’t be able to failover to your secondary to retrieve data that was deleted on the primary.
To protect against accidental deletion, you should use soft delete.
Note: This feature “Soft delete” is not yet supported in accounts that have a hierarchical namespace (Azure Data Lake Storage Gen2).
I would suggest you to vote up an idea submitted by another Azure customer.
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