‫So now let's talk about EBS Snapshots.
‫So, an EBS Snapshot is a backup
‫at any point in time of your EBS volume.
‫And for this, it's not necessary to detach your EBS volume
‫from your EC2 instance but it's recommended.
‫You can copy these EBS Snapshots
‫across different Availability Zones
‫or even across different Region.
‫So, for example,
‫let's take EC2 instance that has an EBS volume in US-EAST-1A
‫and an EC2 instance in US-EAST-1B.
‫So we can take a snapshot of the EBS volume.
‫Okay, and thanks for that snapshot
‫we can actually restore it in another AZ.
‫So this is how you would transfer an EBS volume
‫from one AZ to another.
‫Next, you need to know about a few EBS Snapshots feature.
‫So the first one is called the EBS Snapshot Archive.
‫It's the ability for you to move the snapshot
‫to an "archive tier" that is going to be up to 75% cheaper.
‫So, if you do move this snapshot to an "archive tier"
‫then it will take you from within 24 to 72 hours
‫for restoring the archive.
‫So it's not immediate.
‫The other thing is to have a Recycle Bin for EBS Snapshots.
‫So in case you do delete your EBS Snapshots
‫instead of being permanently deleted
‫then instead they're going to land in Recycle Bin.
‫And so the idea with this
‫is that you can recover them from an accidental deletion.
‫And the retention for your Recycle Bin can be set
‫from anywhere between one day to one year.
‫The last feature you need to know about
‫for your EBS Snapshots is called the Fast Snapshot Restored.
‫So this forces a full initialization
‫of your snapshot to have no latency on the first use.
‫This is particularly helpful
‫if your snapshot is big, very big
‫and need to initialize an EBS volume
‫or needs to instance out of it very quickly,
‫but this feature costs a lot of money,
‫so be careful when using it.
‫Okay, that's it for this lecture.
‫I hope you liked it.
‫And I will see you in the next lecture.