Time
4 hours 6 minutes
Difficulty
Beginner
CEU/CPE
4

Video Transcription

00:00
in this video, we'll look deeper into the virtual machine capabilities on National.
00:06
I should. Virtual machines is a service that allows you to create a news virtual machines in the cloud
00:12
just like your laptop. You have complete control of the software running on the metro machine.
00:17
You can install operating system of your choice and configure it according to your requirements.
00:23
You can also his style and run custom software on it, almost without any restrictions.
00:29
You manage the VM by connecting to it remotely using remote there. Stop client for Windows or sshh Client. For Lennox,
00:37
you can provisional VM in agile in minutes. This is done with the help of pre configured VM images that are available on national marketplace.
00:47
The image is a template of the virtual machine that includes operating system and, quite often, other software like hosting environment Web servers, data basis or complete applications.
01:00
You can also create custom images from your own premises environment
01:04
and rent them a natural with almost no changes.
01:07
This is very helpful. Way to migrate your existing on premise work words toe azure with low effort.
01:17
It is called lift and shift,
01:19
renting a single VM for deport development and testing purposes is careful, but actual offers advanced highly of high availability features for production applications running on virtual machines.
01:33
One of those features is availability. Sets of our ability set is a logical grouping off two or more virtual machines that helps you
01:42
keep your application of our boat. In the case of plant or implant, Maintenance
01:47
of ability sets use a concept called four Domains and update domains
01:53
in national. Ah, full domain is a single serve Iraq that has independent power cooling networks, which and physical hardware that provides physical separation of the work world.
02:05
You can catch upto 34 domains for your work. What?
02:08
Let's say that your application has to tears a weapon here that he has sort of a Web server running in in the first GM in a database year that he has a database running on the second PM
02:22
If something happens with the hardware in the rack, let's say, for example, the physical server to fails. You're what GM will be lost, and it will take some time for Russia to the deal point on another hardware,
02:35
it is also possible the whole rack to fail If, for example, the networking switch breaks
02:40
in this case, we'll lose both the EMS, the weapon, the database
02:46
tow. Avoid this. You can create more tipo viens for each one of your tears and put them in a vow. Ability sets.
02:53
When VM are in honor of our ability, said I should make sure that those get the point across four domains in a favor in one of the four. Tomei's or server racks will not impact your application.
03:08
VM stat are deport on the second photo Meant will continue to function.
03:15
The more viene few Kev prettier, the more reliable your application becomes because it is leverage is the complete set of four domains that, as your offers, the full domains feature off of ability sets is very important to keep your applications running during implant maintenance,
03:31
where on unexpected failure can call some of the infrastructure to become inaccessible.
03:38
The other important feature off ability sets it's called Update domain Update. Domains are important during a plant maintenance when of'em needs to be restarted.
03:49
This may happen when new patches are applied to the host ways or new features are released into the platform.
03:55
The M's are assigned the Daito Manes by the underlying Azure platform. The assignment is done by a proprietary algorithm and use the escape. No import to it.
04:06
What the data maze indicate groups of virtual machines that can be rebooted at the same time. In our example, VM one in the M six will be rebooted simultaneously after them. V M three,
04:19
VM five,
04:21
VM two and VM four
04:25
of our ability sets doesn't have additional cost. You pay only for the PM's that you create in place in tow. Availability sets. Keep in mind that single V EMS that don't have actual premium SSD drives and are not placed in honor of our ability set are not covered under Azure Sele's.
04:45
That is why it is recommended to place your VMC Navarro ability sets
04:50
virtual machines. Care Sets is another service that allows you to manage a group of identical V EMS
04:58
on example of this can be a wet farm where you have multiple Apache servers running in parallel and serving user requests.
05:05
You can centrally configure managing update. Old of'em seen the scale set
05:10
very often. Those v EMS are put behind a load balancer to balance the traffic between them
05:15
in situations where more VM instances of needed to handle the traffic, those can be added on demand or pretty or a pretty fine schedule
05:26
at all. Actually, no bouncer have built in the integration with the scare sets, and they are automatically configure. Tow the new machines to the law bouncing pool.
05:36
Once the low decreases, the new instances can automatically be removed, and the law Bonser is reconfigured to not send any more traffic. Tow the remove E EMS.
05:47
Now let's look at one more azure compute service that is based on virtual machines.
05:54
Actual batch can help you when you need a large scale jobs scheduling service. You can use actual batch to scale, toe hundreds or thousands or VM simultaneously and run power Parallel calculations.
06:06
Typical examples are encoding videos in different four months, rendering animations or processing large data sets on schedule.
06:15
Actual Batch is responsible for starting the pull of e EMS, installing the applications and staging the data
06:21
around the job's identify failures and scale down. When the bull
06:28
Ah,
06:29
work is complete,
06:30
I should watch a lawsuit to choose between Windows and Lenox always stood on your jobs.
06:35
Now you have a good understanding what we and based computer options are a viable national. On the next video, we'll look at the container options in Azure.

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