Hybrid Storage Architectures
Explore how to design hybrid storage architectures that connect on-premises environments to AWS storage services. Understand when to use Storage Gateway types like File, Volume, and Tape Gateway, and how Snow Family devices address large-scale offline migrations. Learn to balance performance, durability, compliance, and cost in hybrid cloud storage systems with effective connectivity and backup strategies.
Enterprises running mission-critical workloads across on-premises data centers and AWS face a fundamental architectural tension. Cloud storage delivers strong durability and scalability, but latency requirements, compliance mandates, and legacy application dependencies can prevent full migration. Hybrid storage architectures resolve this tension by maintaining local access points for performance-sensitive operations while offloading capacity, durability, and archival responsibilities to AWS. In exams and real-world design, the ability to select the correct hybrid storage pattern based on access characteristics, bandwidth constraints, and recovery objectives separates competent answers from incorrect defaults, such as generic migration services or direct cloud access.
Introduction to hybrid storage integration
Hybrid storage integration establishes a bridge between on-premises infrastructure and AWS storage services without requiring applications to be rearchitected for native cloud APIs. The primary integration layer is AWS Storage Gateway, a service that deploys as a virtual appliance or hardware device on-premises and exposes industry-standard storage protocols while transparently managing data movement to Amazon S3, S3 Glacier, and Amazon EBS. Unlike pure cloud storage, in which applications must use AWS SDKs or the AWS CLI, hybrid storage preserves existing protocol interfaces such as NFS, SMB, iSCSI, and Virtual Tape Library (VTL), so legacy systems operate without modification.
The architectural decision framework for hybrid storage revolves around two primary transfer paradigms. Online integration through Storage Gateway suits ongoing operational workloads in which data flows continuously between environments. Offline migration through
The following diagram illustrates the complete hybrid storage landscape and the multiple pathways connecting on-premises infrastructure to AWS storage services.
Gateway type selection determines whether the hybrid architecture meets performance, capacity, and operational requirements at the same time.
AWS Storage Gateway types and selection
Selecting the correct Storage Gateway type requires mapping application access patterns to the protocol and data ...