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Storage Gateway

Created By: Keishin CHOU Last Edited: Apr 22, 2020 10:52 AM

Overview

  • AWS Storage Gateway connects an on-premises software appliance with cloud-based storage to provide seamless integration with data security features between your on-premises IT environment and the AWS storage infrastructure.
  • AWS Storage Gateway offers file-based, volume-based, and tape-based storage solutions.

Storage%20Gateway/Untitled.png

File Gateway

  • A hard disk in the cloud. Store files as objects in S3, with a local cache for low-latency access to your most recently used data.
  • Configured S3 buckets are accessible using NFS and/or SMB protocol.
  • Supports S3 standard, S3 IA, S3 One Zone IA.
  • Bucket access using IAM roles for each File Gateway.
  • Most recently used data is cached in the File Gateway.
  • Can be mounted on many servers.

Storage%20Gateway/Untitled%201.png

Volume Gateway

  • Block storage in S3 with point-in-time backups as EBS snapshots.

  • Dataset backup in the cloud using iSCSI block protocol.

  • Data written to these volumes can be asynchronously backed up as point-in-time snapshots of your volumes, and stored in the cloud as EBS snapshots.

  • Snapshots are incremental backups that capture only changed blocks.

  • Cached Volumes

    • Use S3 as your primary data storage.
    • Retain recently used data locally in Storage Gateway.
    • S3 is primary storage. Save recently used data (not all data) locally.

    Storage%20Gateway/Untitled%202.png

  • Stored Volumes

    • You store your (primary) data locally.
    • Asynchronously back up the whole data to AWS with schedule.
    • In the form of EBS snapshot.
    • Local storage is primary. Back up the whole data to S3.

    Storage%20Gateway/Untitled%203.png

    Tape Gateway

    • Back up your data to S3 and archive in Glacier using your existing tape-based processes.

    Storage%20Gateway/Untitled%204.png

    Storage Gateway Exam Tips

    • On premise data to the cloud ⇒ Storage Gateway
    • File access / NFS ⇒ File Gateway (Backed up by S3)
    • Volumes / Block Storage / iSCSI ⇒ Volume Gateway (Backed up by S3 with EBS Snapshots)
    • VTL Tape solution / Back up with iSCSI ⇒ Tape Gateway (Backed up with S3 and Glacier)