Hey, and welcome back in today's video, we'll be discussing about the migration strategies.
Now, there are six major migration strategies that we need to understand.
The first one is it is just you have replied from today's refactor already.
Architect Ford is reporting you have retired and reading now many times in exams like you might not
be asked the question on, like, what exactly is the Dehousse?
But you will sometimes see the questions which has left and shift.
So you need to have a high level audio specifically for this lift and shift based migration strategy.
So the simplest one is rehearsed.
So it is also referred as lift engine and it basically deals with moving the application without any
changes.
So let's say that you have a server in on premise which has the mice install.
So what do you do during the migration?
You create a new instance and you install the same version of the bicycle there.
So there is no changes which is involved.
All you have to do is you're moving from one server to the cloud server.
Now, the second migration strategy is a free platform.
Android platform basically deals with using some of the cloud based optimization to achieve certain
tangible benefit.
So it's like moving the on premise database to the idea.
So you do make a certain cloud based optimization to take advantage of the cloud technology.
Now it is referred as lift a finger and shift.
The third one is refactored entry architect.
Now, in this type of approach, you basically redesign the application in such a way that it takes
care of the cloud native features.
It's like migrating your application in on Baramidze to the server list completely.
So this is also referred as the refactor entry architect because if you are planning to migrate to Cervalis,
then a lot of architecture and factoring that would be needed.
All right.
So this is the third one.
Fourth one is reproduce reports is basically states that you move from a perpetual license to this software
as a service model to the highest level of example that I can give you is necessary.
This is basically whatever it is going to.
So if you have no sense, you can move it to a dabblers inspector, which follows the complete SAS model.
You're the next one is retired.
Retiro basically states that you remove the applications which are no longer needed.
Typically in enterprises, you will see that there are a lot of applications which keeps on running
and no one has an on what that application is all about.
So it does remove the application which are no longer needed.
Let's say you have one, but it might have to be so it is not being used.
So you can go ahead and retire then.
And the last one is reading.
Reading basically means that if the application is critical and if you find that a lot of refactoring
is needed for for it to be migrated and that is not the best choice, then you can just read it.
And at a later stage you can think about migration.
So these are the high level overview about the migration strategy.
Again, this is quite simple to understand.
Now, when you talk about adding migration in terms of AWG and in terms of exams, we need to remember
that migration is not always related to servers.
No organisation might want to continue to use their on premise servers and they might want to migrate
their data, which is lying in the magnetic tapes to establish Glacier so it can be the data level migration.
Also now to the domain of migration.
It's not necessary that we should only understand the migration related to servers, but also migration
related to various aspects.
Now there are a lot of services that help says in migration in that it address some of them includes
idalis normal.
Then you have these sort of migration service, you have their database migration service.
You also have the application discovery service, which helps here.
You have a database, normal way and various others.
So these are some of the services that we will be discussing throughout this domain of this certification
exam.
So this is the high level overview about the migration strategies and what is about to come in this
domain.
I hope this video has been informative for you, and I look forward to see you in the next video.