You choose where to store your data by specifying a region (for Amazon S3) or an availability zone within a region (for EBS). Data stored in Amazon Elastic Block Store (Amazon EBS ) is redundantly stored in multiple physical locations as part of normal operation of those services and at no additional charge. However, Amazon EBS replication is stored within the same availability zone, not across multiple zones. Amazon S3 provides a highly durable storage infrastructure. Objects are redundantly stored on multiple devices across multiple facilities in an Amazon S3 Region. Once stored, Amazon S3 maintains the durability of objects by quickly detecting and repairing any lost redundancy. Amazon S3 also regularly verifies the integrity of data stored using checksums. If corruption is detected, it is repaired using redundant data. Data stored in S3 is designed to provide 99.999999999% durability and 99.99% availability of objects over a given year. Refer to AWS Overview of Security Processes whitepaper for additional details - available at k. Data restoration. If I accidentally delete a file, email or other data, how much time does it take for my data to be partially or fully restored from backup, and is the maximum acceptable time captured in the SLA? AWS customers retain control and ownership of their data. AWS provides customers the flexibility to place instances and store data within multiple geographic regions as well as across multiple Availability Zones within each region. l. Scalability. How much available spare computing resources does the vendor provide to enable my usage of the vendor’s services to scale at short notice? The AWS cloud is distributed, highly secure and resilient, giving customers large scaling potential. Customers may scale up or down, paying for only what they use.
Amazon Web Services Risk and Compliance January 2017 Page 68 of 87 Key Area Questions AWS RESPONSE m. Changing vendor. If I want to move my data to my agency or to a different vendor, or if the vendor suddenly becomes bankrupt or otherwise quits the cloud business, how do I get access to my data in a vendor-neutral format to avoid vendor lock-in? How cooperative will the vendor be? How do I ensure that my data is permanently deleted from the vendor’s storage media? For Platform as a Service, which standards does the vendor use that facilitate portability and interoperability to easily move my application to a different vendor or to my agency? Customers retain control and ownership of their data. Customers can export their AMIs and use them on premise or at another provider (subject to software licensing restrictions). Refer to the AWS Overview of Security Processes Whitepaper for additional details - available at .
- Spring '16
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