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.