Posted On: Apr 4, 2018

S3 One Zone-Infrequent Access (S3 One Zone-IA; Z-IA) is 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 Standard-IA; S-IA) storage classes. S3 One Zone-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 AWS Region for compliance or disaster recovery purposes. With S3 One Zone-IA, customers can now store infrequently accessed data within a single Availability Zone at 20% lower cost than S3 Standard-IA. In addition, S3 One Zone-IA can offer 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, S3 Standard-IA, S3 One Zone-IA, and Amazon Glacier, are all designed for 99.999999999% durability. Amazon S3 Standard, S3 Standard-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 One Zone-IA saves cost by storing infrequently accessed data with lower resilience in a single Availability Zone.  Amazon S3 Standard-IA is a good choice for long-term storage of master data that is infrequently accessed. For other infrequently accessed data, such as duplicates of backups or data summaries that can be regenerated, S3 One Zone-IA provides a lower price point.

Data can be uploaded directly into S3 One Zone-IA, or can be populated by using S3 Lifecycle policies to tier data into S3 One Zone-IA. S3 One Zone-IA is available today in all AWS commercial Regions.

To learn more about S3 One Zone-IA visit the Amazon S3 storage classes page. For more information on today's announcements, read the AWS blog entitled Amazon S3 Update - New Storage Class & General Availability of S3 Select.