Resilience in AWS Backup
AWS Backup takes its resilience — and your data security — extremely seriously.
AWS Backup stores your backups with at least as much resilience and durability as your resource’s original AWS service would give you, if you backed it up there.
AWS Backup is designed to use the AWS global infrastructure to replicate your backups across multiple Availability Zones for durability of 99.999999999% (11 nines) in any given year, provided that you adhere to the current AWS Backup documentation.
The AWS global infrastructure is built around AWS Regions and Availability Zones.
AWS Regions provide multiple physically separated and isolated Availability Zones,
which are
connected with low-latency, high-throughput, and highly redundant networking. AWS
Backup stores
your backups across Availability Zones. Availability Zones are more highly available,
fault
tolerant, and scalable than traditional single or multiple data center infrastructures.
For
more information, see AWS Backup Service Level
Agreement (SLA)
Furthermore, AWS Backup empowers you to copy your backups across Regions for even greater resilience. For more information about the AWS Backup cross-region copy feature, see Creating a Backup Copy.
For more information about AWS Regions and Availability Zones, see AWS Global
Infrastructure