Posted On: Apr 4, 2018

S3 One Zone-Infrequent Access (S3 Z-IA), a new storage class designed for customers who want a lower-cost option for infrequently accessed data, but do not require the multiple Availability Zone data resilience model of the S3 Standard and S3 Standard-Infrequent Access (S3 S-IA) storage classes. S3 Z-IA is intended for use cases with infrequently accessed data that is re-creatable, such as storing secondary backup copies of on-premises data or for storage that is already replicated in another Amazon Web Services Region for compliance or disaster recovery purposes. With S3 Z-IA, customers can now store infrequently accessed data within a single Availability Zone at 20 percent lower cost than S3 S-IA. In addition, S3 Z-IA offers customers higher availability and durability than self-managed physical data centers, with the added benefit of having to pay only for what they use.

Amazon S3 Standard, S-IA, Z-IA, as well as Amazon Glacier, are all designed for 99.999999999% durability. Amazon S3 Standard, S-IA and Amazon Glacier distribute data across a minimum of three geographically-separated Availability Zones to offer the highest level of resilience to AZ loss. S3 Z-IA saves cost by storing infrequently accessed data with lower resilience in a single Availability Zone. While Amazon S3 S-IA is a good choice for long-term data storage, backups, and disaster recovery, for some Infrequent Access workloads a lower resilience to AZ loss is acceptable as a second copy of the data exists elsewhere. For these workloads S3 Z-IA offers a 20% lower storage price with similar characteristics of S3 S-IA and an availability SLA of 99%.

Data can be PUT directly into S3 Z-IA, or can be populated by using S3 Lifecycle policies to tier data into S3 Z-IA. S3 Z-IA is available today in all Amazon Web Services commercial Regions.

To learn more about S3 Z-IA visit the Amazon S3 web page