STORAGE GATEWAY
AWS Storage Gateway is a service that connects an on-premises software appliance with cloud-based storage to provide seamless and secure integration between your on-premises IT environment and the AWS storage infrastructure.
The service enables you to securely store data in the AWS Cloud for scalable and cost-effective storage.
(Basically, it is an application that we install on vSphere or HyperV and associate with our aws account, this tool will asynchronously copy your data to s3)
4 types of Storage Gateway
File gateway
2. Volume gateway
3. Tape gateway
File gateway
Files are stored as object in s3 bucket and allows you to store and retrieve objects through nfs.
Once the object is transferred to s3 they can be managed as native s3 object so we can apply bucket polices such as versioning, lifecycle management, cross region replication can be applied directly.
(it is mainly used to copy your files to s3, the files can be videos, images, documents etc.) (uses nfs v3 or 4.1)
Volume gateway
a . It is a block based storage which uses iscsi block protocol mainly used to store os, applications, db etc.
b. It acts as a virtual hard disk in cloud. (Basically, we are taking the hard disk on premise and we back them up as a virtual hdd in cloud
c. Volume gateway are 2 different type
Stored volume: we can configure to store the primary data locally and then asynchronously back up point-in-time snapshots of this data to Amazon S3.
Cached volume: we store our data in S3 and retain a copy of frequently accessed data locally. Cached volumes offer a substantial cost savings on primary storage and minimize the need to scale your storage on-premises
Tape gateway
Also called as virtual tape library (VTL).
It offers a cost-effective and durable archive backup data in Amazon Glacier. c. It provides a virtual tape infrastructure that scales seamlessly with your business needs and eliminates the operational burden of provisioning, scaling, and maintaining a physical tape infrastructure.
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