‫So we've seen Amazon S3
‫as a standalone service, but it is possible for you
‫to use it in a hybrid cloud type of setting.
‫So AWS wants you to bridge
‫between your on-premises environment to AWS
‫and that's called a hybrid cloud.
‫So part of your infrastructure is going to be on-premises
‫and the rest is going to be on the cloud.
‫Why?
‫Well, maybe because sometimes you have created,
‫for example, your on-premises infrastructure first
‫and you're doing a migration but it could be long
‫so you can do a long cloud migration
‫or for security requirements or compliance requirements,
‫maybe it's your strategy to have part of it on the cloud
‫and part of it on-premises.
‫You have really different use cases
‫for trying to have two different ways of doing IT.
‫Some of it on-premises and some of it on the cloud.
‫And Amazon S3, it's a proprietary storage technology,
‫so this is not something like the EFS service
‫or NFS protocol we saw from before
‫that we can use directly on two servers on-premises.
‫For exposing S3 data on-premises,
‫you have to use something called a Storage Gateway.
‫So if you wanted to summarize the storage options on AWS,
‫the block storage would be EBS
‫or an EC2 instance store.
‫The file storage would be a network file system
‫so Amazon EFS,
‫and object storage would be Amazon S3 or Glacier.
‫And where does the Storage Gateway fit in all this?
‫Well, the Storage Gateway is going to be bridging
‫your on-premises data and cloud data in AWS.
‫So your hybrid storage will allow your on-premises systems
‫to seamlessly use the cloud
‫to extend the storage capability.
‫So this can be used for disaster recovery,
‫backup and restore or tiered storage.
‫There are different types of Storage Gateway.
‫There is a File Gateway, there is a Volume Gateway
‫and a Tape Gateway.
‫Now you don't need to know all these types
‫going into the exam, okay?
‫What you need to know is that the Storage Gateway
‫allows you to bridge whatever happens on-premises
‫directly into the AWS Cloud.
‫So under the scene,
‫the Storage Gateway will be using Amazon EBS,
‫Amazon S3, and Glacier behind the scenes, okay?
‫So from a certified cloud petitioner perspective,
‫the Storage Gateway is a way for you
‫to bridge your file systems and your storage on-premises
‫into the cloud to leverage best of both worlds, okay?
‫For if you were to do
‫the AWS Certified Solutions Architect Associate course,
‫you would need to understand Storage Gateway
‫a little bit better, but I will save you this right now
‫for the Certified Cloud Practitioner.
‫Okay, that's it.
‫I hope you liked it
‫and I will see you in the next lecture.