Configuring availability replicas to run scheduled data backups
When an availability database is replicated across multiple availability replicas in an availability group, a configuration option is available to enable you to select a single replica on which to run a backup operation instead of backing up all replicas.
About this task
The configuration option can also be used to offload the backup from a primary replica to a secondary replica for load balancing. When databases fail over, backups must continue to run from other replicas to ensure that high availability is maintained.