Original subtitles

Well, hi, guys.

In this video, we're going to learn virtualization.

So I want to get started real quick.

So the virtual server and this has actually become an indispensable device for corporate data centers.

It's thanks to virtualization.

Well, that we've actually been able to overshadow these physical servers now.

Don't worry what you just learned is still relevant, but we're going to take it a step further.

Because the virtual server does not make its physical counterpart unnecessary.

So you both have their benefits and ideal usage scenarios, so to better understand the difference between

a virtual server and a physical server, it's necessary to examine each one by itself.

So virtual servers, they require physical servers to operate, but they are different from physical

servers running a web architecture database or file server.

All right, so what is a physical server again?

Well, a physical server is the hardware with a motherboard or processor or memory and Io controllers,

all that kind of stuff.

It's hardware, and it's used directly by an operating system rather than a virtual platform.

The physical server is reference to run a single instance of an operating system.

It's the physical servers that are used to run Windows and Linux or another operating system and often

a single application on it.

OK, so then what is this virtual server?

Does it even exist?

Well, yeah, a virtual server or virtual machine is software based.

It's a software based representation of a physical server.

The technique that abstract CPU and memory storage and network resources from the underlying hardware,

and it assigns him to virtual machines or a VM.

A virtual machine can also be referred to as hypervisor.

Yeah.

Because the hypervisor runs directly on the servers, hardware, not on an operating system.

So virtual machines have an additional level of isolation, and they can run a standalone operating

system on the hypervisor.

So a physical machine can be divided into many virtual machines, each of which has its own purpose.

Wow.

That's like totally cool, right?

So let's go on.

Virtual servers can allow organizations to more effectively allocate their physical hardware resources

to ongoing workloads.

And this is because virtual servers can exist in the same physical environment as opposed to physical

servers.

While a physical server is a single tenant platform with dedicated resources, a hypervisor can support

multiple virtual servers, allowing multiple applications to run concurrently and share physical hardware

capacity among themselves.

So in addition to more efficient allocation of hardware resources, virtual servers offer businesses

a number of benefits.

For example, virtual servers are often easier to manage.

While some companies may choose to set up virtual servers on physical servers stored on site, while

many businesses work with managed service providers who manage their virtual servers for them.

Now, in the second scenario, the maintenance, updating and management of servers is all delegated

to trained data center specialists and businesses then don't even have to bother to keep servers up

and running and cool.

So this model also makes virtual servers highly scalable and even immediately think about like this.

When businesses with physical servers want to add more capacity, well, they need to go out and request

new hardware, work with IT professionals to prepare that hardware for their internal use.

Maybe even add some more air conditioning or, you know, all of that stuff.

But with virtual servers, hey, capacity can be easily added or scaled down as needed.

So virtual servers are a critical component of business continuity and disaster recovery strategy.

So whether businesses are running on premises, virtual servers and using cloud storage backup or using

providers located far from natural disasters.

Well, virtual servers help restore services with minimal downtime.

So what do you think?

That's pretty cool, huh?

So now you know about virtualization, you also know the difference between physical and virtual servers.

So I hope you're excited about this as I am, you know why?

Because we've got more in the next video.

I'll see you then.