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>> Hi, in this video we'll discuss Azure Virtual Machines. As you probably know, Azure Virtual Machines are computers that you can run on demand in Azure without needing to buy any hardware. Virtual machines, or VMs, act as normal workstations and servers within the boundaries of the hardware resources like CPU cores and available memory, that you define for them. Underneath the VM, Azure Infrastructure as a Service, or IaaS, ties these machines into the physical hardware that they actually live on. You can then configure the operating system and host applications or services as you would any standard physical computer in your own data center. So a virtual machine gives you more control over the operating system configuration than other Azure services. This is the key difference between IaaS, where you manage the operating system, the platform, and Platform as a Service, or PaaS, where you only manage the application and the data. With virtual machines, you still need to maintain the VM, including the operating system, the patches, the performance, and things like disk space usage just as you would if the machine was running in your own data center Each VM is built from a collection of components, or objects, such as network interface card, disks, IP addresses, network security groups, those controlled network traffic flow. These objects do the same job as physical components you would buy if you were building your own machines, except we're using software to define them. Microsoft buys, supports, and maintains the underlying physical components in its Azure data center. A VM object includes parameters like its name, operating system, as well as the size of the VM. VM sizes are preconfigured sizes of virtual machines that include how much memory, CPU cores, and other resources will be available to the VM. These size configurations are optimized for specific workloads. For example, some sizes are better suited for memory-intensive workloads, and others are fine-tuned for CPU-intensive workloads. Just like physical computers, virtual machines in Azure use disks as a place to store the operating system, the application and the data. All VMs have at least two disks, one for the operating system, one temporary disk. Temporary disk will lose its data when the machine is shut down, but you can add additional permanent storage for your application with extra virtual disks or even managed disks, which have greater performance, greater reliability and availability. Finally, the VM needs to be attached to a virtual network interface, a private IP, and, optionally, a public IP address. These connect the VM to the virtual network, enabling different types of Azure resources to securely communicate with each other, with the internet, and with your on-premises network. The virtual networks are logically isolated from each other in Azure, and you can configure their IP address range, their subnet, the routing tables, gateway, and security settings much like you would in a traditional network in your own data center. And finally, all of the different components of a VM, including the VM object itself, can be organized into resource groups. Think of a resource group like a bucket. It holds all of the components that you would want to manage together, from initiation all the way to retirement. For example, it is a lot easier to delete a resource group and all of the objects that it contains rather to delete the VM, then the disk, the storage accounts, the virtual network, and all of the other objects individually. So to wrap this up, Azure virtual machines are the basis of Azure IaaS model. They can be used for development, for testing, to run production applications in the cloud, or simply as an extension of your own data center. Essentially, Azure VM provide a fast, scalable, controlable way to add more compute power to your enterprise. We hope you'll find them as exciting as we do.

Video Details

Duration: 4 minutes and 22 seconds
Language: English
License: Dotsub - Standard License
Genre: None
Views: 8
Posted by: csintl on Sep 10, 2018


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