So how does hyper V work? Okay, so, uh,
of course you've got you have a choice in hyper visors, Microsoft's primary competitor in the tri Nation space. As we've discussed his VM where on their stand alone Yes, Excite product is most closely analogous to hyper V. I would say the two
in terms of feature set very, very close. There's very little difference between the two,
but moving away from physical hardware and on type of these virtual station platform gives you quite a number of vent benefits. So each render offers additional products above and beyond the base product, notably if you get involved in things like working in a professional environment. Viper V.
You'll be working with System Center from Microsoft and V Spare from Vienna, where
these two products are the product suite, basically differ quite radically in most metrics, and they're almost difficult to compare directly. But effectively, the difference between the two is getting smaller and smaller. As time progresses, a CZ one company realizes that the other company
that because virtualization isn't a proprietary item, companies tend to share s o much stuff to come up with ideas that I am aware of jumped on Vienna where of thought up of the user interface system that might work on hyper V have jumped on it as well. So much sort of used it. So it does carry on like that.
All features are included in the free hyper V server. This this is a major point, I think, from Microsoft. They made a decision
a few years ago now to give away the free hyper V server completely unrestricted. There was no kind of beginning tradition or standard. And then anything else on dhe. They've kind of just gone ahead with keeping it going
on. Dhe effective. They decided, in the end, to just give it away. It helps them build their network.
Andi, you know, that's that's it's fed fairly. It goes along quite quite nicely nowadays, So, yeah, uh,
there's There are the same limitations on virtual machines as on a data center edition Windows server. We do cover these later. Wrong. There are depending on what version of Windows server you might be using. If you're working in a professional environment, there are certain limitations so you can have a number set number of the EMS
or a certain number off Virtual CP. Use that kind of thing
that does carry on. But it's the data center edition, which is the top end with no service, And Microsoft haven't gone. Let's block it. The standard one they've actually said, Look, give them everything that comes with the top data Center edition of Windows Server
S O. You get things like clustering support, which is where you can build multiple hyper V service together on kind of turned them into a giant server farm replication, which is where a virtual machine will copy itself to another server and kind of sit. There was a spare copy. So if this one goes down,
this one will take over. Kind of like a high availability matrix
you couldn't do storage on a fiber network. If any of you have heard of the term sand, which is storage area networks or, to a lesser extent now, as network attached storage, it's a bit more than what we would cover in the fundamentals course. But if if you guys are interested in that kind of stuff, it does allow you to do that as well,
and it allows you to do a migration of running machines
even like kind of outside and across clusters themselves. So if a machine is running and you're thinking what I need to take this server down to patch it and do changes to it, you don't have to shut the PM's down. You could just say, Look, move over to this server here, carry on doing what you're doing, serving all your all your clients and users on, then just carry on
running as if nothing has happened on the user won't even notice.
So it allows you to do that kind of migration and the just goes, just ask, Can you run a hyper V inside the other in, Yes, Exile by SurveyUSA
that I wouldn't recommend it. But there are ways around it, and you can kind of Yeah, it's yes, you can. So Eric has said that you can run hyper V inside hyper V. You can if you want to go into, like, a whole inception type technology. Yes you can.
Whether it's cross platform or no, I haven't actually got involved in that side, so I don't want to give any false information and say, yes, you can.
I would be reticent to say Do it because of the way that interacts with the physical environment. Eso it sze just something to keep an eye on.
It's a good question. I can certainly find out for you, though. Just go. I will see if I can find out for the next session that we do. I'll add that to my note list.
hyper V, how does it work? So it uses very familiar windows into faces carrying on from before. So you won't be using anything Maur than what you might have seen if you've used programs like the M. M. C s. Oh, you're looking at the kind of the interfaces to administrate your machine. The machine console
s so you're using things that you would know already.
If there is seamless integration with no service management tools, you can if you do run on the server and you get yours kind of server management, screen up, it seamlessly integrates into it. You can use system center virtual machine manager things that we might not necessarily talk about in the fundamentals course
possibly talk about in the future courses, though I'm absolutely more than happy if there's,
you know, if you guys want, we can do a kind of an intermediate and advanced course or even just go straight to advanced and kind of trunk it altogether as well on. But it also has support for guest clusters as well, so you can add machines in Onda, allow them to cluster together, do work together effectively.
So it means that there's like a fail over system that's built into it
effectively. There was also support for something called S R I O V Network adapters. S O S I R S r. I need to say this right S r I O V. It's a specifications that allows
a PC. I express resource. So you kind of got pizza Express is the technology used to get cards expansion cards, Ray. Often they used with graphics cards these days because most people have onboard network on stuff like the audio and things like that. But you do get if you have a sorrow V network adapters and you kind of slop them into the board.
It allows for manageability and performance to increase
tremendously. Basically, what it does is it allows a physical item like a network interface card, kind of where you plug your network, able to present itself as multiple versions of itself.
So I'll give you an example. Microsoft. Until a few years ago, Microsoft used to call a printer a printer.
Now what they do is they call the physical printer that you have next to your LaserJet or whatever have you.
That's not a printer. That's a print device.
The difference is subtle, but very important. A print device is the physical item.
A printer is those little kind of graphics that you have in your print options, where you choose which printed to go to. Now you can have that printer installed four times over with different settings set up. So those are your printers and your print devices where the actual output of the item is. This is what you would do with S R. O V.
With the network card, you can have a network are plugged in,
and it allows that network card to present itself multiple times as if it was multiple network cards with lots of different configurations. Effectively, Onda allows different virtual machines in the virtual environment to share a single Petey I express hardware interface
on hope of the actually supports that with graphics cards as well.
It shares memory. There's there's quite a lot now that it starts to use, but that's what S R I. O. V is actually involved with on what it stands for is single root input and output virtualization single root. Meaning that,
well, let's get rid of that
single root, meaning that it's one card. So it's a single point. They were going into that route to think of it like a tree and then input and output virtualization. So data's flowing backwards and forwards, and it allows it to virtual eyes and go out to a ll the different types of the virtual machines on the network effectively.
But for the purposes of this level of this lesson, sorry, we're going to be focusing on the general benefits of virtualization s. So we're not really gonna be focusing on the kind of its not going into the nitty gritty type stuff. It's more of like a high level overview
off the particular features that you confined in, like hyper V in Windows client like Windows 10. Hopefully you're using the latest version of Windows.
I know there are some people who don't like Windows 10. Personally, I have no problem with it. I actually think it's a good mix between the security of Windows eight or 8.1 on Dhe, the interface of Windows seven. I'm happy with it, you know, some people are,
but also we're gonna be covering the servers Windows Server with hyper V or hyper V server, and that's a big point to make.
Windows Server with hyper V means you have your graphical user interface on a window server.
Hyper V server very often doesn't have a graphical user interface. You're looking at power shell commands or remotely using, like logging in with remote administration tools, so it's just something to bear in mind there as well.