Plan an Azure Virtual Desktop Architecture

4. Load Balancing Options

Load balancing option. We have mentioned that Microsoft will take care of the load balancing methodology for you but still you need to make the decision of which load balancing method you will be using. We have two two load balancing options. One is called depth first and the other is called breadth. First, depth first load balancing allows you to saturate session host with user sessions in a host pool. Once the first session reaches its session limit threshold, the load balancer directs any new user connections to the next session host in the host pool until it reaches its limit and so on and so on. So let me try to explain it by using an example. Let’s assume I have these seven users and I have the three session hosts. The maximum session limit for decision host for each of the session host is four. If I use the dipped fest methodology for load balancing, it’s going to try to fill session host one fest by the maximum it can take so it will give it four users. Then it can move to the second session host. We have three users left so it will try to give it these three users and it will not use the session host three. So it's going to look something like that. So by now you can actually come tithe conclusion that this method is ideal for cost conscious organizations that want more granular control on the number of virtual machines. They will allocate to a host pool because they are using the depth fast. They know that they have for example, seven users. In this example they will only need maximum of two virtual machines, not three. This method selects the session host with the highest number of sessions when it wants to have a new connection for a new user. So this is the depth. The second option is called a breadthist.The breadth first load balancing allows youto evenly distribute user sessions across thesession hosts in a host pool.So in our example of the seven usersit will try to distribute the users evenly.So it will put two of them in session host one,two of them in session host two, two of them insession host three and the one left is going to berandomly distributed to another one of the hosts.So it's going to look something like this.Now I'm sure you can now also cometo the conclusion that the breadthfast load balancingis ideal for organisations that want to providethe best experience for users connecting to theirpooled virtual desktop environment.The method here selects a session hostrandomly with the least number of sessions.It is important to note that bothload balancing methods share two common behaviors.First, if a user doesn't already have a sessionin the host pool, then the load balancer won'tconsider session hosts who allow new connection propriety isset to false during load balancing.The second common behaviour is if a user already hasa session in the host pool and is reconnecting tothat session, the load balancer will successfully redirect them tothe session host with their existing session.Even if that session hosts allow newconnections to parity is set to false. You.

5. Users Profiles Deployment Options – FSLogix

User profiles deployment options. In this lecture we will talk about the user profile versus the remote user profile. What is FSLogix?Which is a new technology acquired by Microsoftfor the user profile management and we will talk about its features and how it works. Of course.Then we will discuss the FSLogix user profile deploymentoptions and what is the recommended one by Microsoft.So, a user profile?A user profile contains data elementsabout an individual or a user,including configuration information like desktop settings,resistant network connections and application settings.By default, Windows creates a local user profilethat is tightly integrated with the operating system.So for every user who signs into avirtual machine, by default Windows will create alocal user profile for that user that istightly integrated with the operating system disk.So a remote user profile is something else.It provides a partition betweenuser data and operating system.It allows the operating system to be replacedor changed without affecting the user data.In a virtual desktop Windows environment, the operatingsystem may be replaced for many reasons andI list three of them for you.First, an upgrade of the operating system.Second, a replacement of an existing virtual machine.And third, if a user being partof a pooled nonresistant WVD environment whichhas been explained in the compute options.So this is what a user profile isand what a remote user profile is.Now let's see what Microsoft have usedof technologies for a remote user profile.There were different.Microsoft products operate with several technologiesfor remote user profiles like Chromeuser Profiles, Rup, user Profile disksUBD and Enterprise state Roaming ESR.These are different technologies, different products.However, no previous solution handled all the user profileneeds that come with a virtual desktop environment.For example, the UPD cannot handle large OSTfiles and the Rup doesn't resist modern settings.And thus we have the need for a new hero.This hero is called FSLogix.In 2018, Microsoft acquired FSLogix and FSLogix actually addresses many profile container challenges.So what is FSLogix?Azure Windows virtual Desktop offers FSLogix profilescontainers as the recommended user profile solution.So this is the recommended technology byMicrosoft Azure to be used with WVD.FSLogix is a set of solutions that allowyou to manage nonpresistent Windows computing environments.User Profiles it addresses many profile containerchallenges such as performance, OneDrive deployment andadditional folders creation for performance.The FSLogix profile containers are highperformance and resolve performance issues thathave historically blocked cached.Exchange mood for OneDrive without FSLogix profilecontainers, OneDrive for Business is not supportedin nonresistant environments at all.And for additional folders creation, FSLogix providesthe ability to extend user profiles toinclude additional folders as well.So how this FSLogix technology works?In a nutshell, I'm trying to simply have the wayof FSLogix working in three steps, starting from the left.First, it separates the userprofile from the virtual machine.So the User profile is no longer storedin the operating system disk or data disk.It separates it from the virtual machine.Then moving to the second step, it keepsor saves this profile as a user assignedvirtual disk in an Azure storage.So it separates it, separates it, and then it saves it.So once we are moving to step three now, once theuser is signing in again to the virtual machine, it willdynamically attach them to the users whenever they login.So this is how FSLogix work.FSLogix is designed to roam profiles inremote computing environments such as WBD.It stores a complete user profile ina single container and at sign in.This container is dynamically attached to thecomputing environment using natively supported virtual harddisk like VHD and VHDX.The User profile is immediately available and appears inthe system exactly like a native user profile.And this is the magic that FSLogix does.Of course, this brings us many features.Like profile is stored as a VT and VDX.It uses the same approach used by UBD.It can be mounted at login and this givesus faster login and no target storage requirements.The size of the profile doesn'timpact the login time anymore.Using VHDX block transferdecreases network utilization.It uses the Caching from WindowsCache Manager and the Profile containerredirects everything from the user profile.So everything is going to be savedon Azure storage for the user profile.Now that we know what is FSLogix, what arethe features of FSLogix and how it works?Let's see.The FSLogix uses profile deployment options.We have three deployment options and oneof them of course, is recommended.Microsoft recommends storing FSLogix profilecontainers on Azure files.Azure fileshift.But the three options are the first one is VM datadisk, which actually uses the data disk to store or theVM disk in general to store the user profiles.And this is not using FSLogix.This is like the classical wayjust to mention it for you.You can do that, but it is not recommendedbecause the user profile is tightly attached to theVM and if we do something to the operatingsystem, it may affect the system and it isalso not recommended for the pulled environments.The second deployment option is to usethe FS logic profile with a virtualmachine acting as a file share system.So we basically use a virtual machine as a filesharing system and FSLogix will save the user profiles there.And whenever a user signs in again, it's goingto bring the user profile from that virtual machinewhich is acting as a file share.This is also an option and it usesFSLogix Profile, which gives us the separation ofthe user profile from the virtual machine disk.The third option, which is the recommended one byMicrosoft, is to use FSLogix profile with Azure files.It makes the solution even easier and integratesinto all the services Azure has to offer.There's no longer need for VMs with datadisks in order to have File share.Instead, connect to the Azure files whichis a managed service by Azure andhave all the profile data contained.So FSLogix with Azure File is therecommended option to be used by Microsoft.As you can see in the diagram, there isno need for disks or even for another virtualmachine acting as a file sharing system.It just directly saves the user profile disk inAzure files, which is more easy and more simple.Of course.

6. Virtual Machine Sizing Recommendations

In this lecture I will talkabout virtual machine Sizing recommendations.I will use this Microsoft documentation and I will provideit to you in the Resources section of this lectureso you can use it yourself as well.So what is this Microsoft documentation about?It provides you with a virtualmachine Sizing guidelines for WVD.It focuses on two options the multisession recommendation and the single session recommendation.Let's start with the single session recommendation.First.What are the recommendations fromMicrosoft for a single session?It says for a VM Sizing recommendations for asingle session scenario, which is basically one user perVM, we recommend at least two physical CPU coresper VM or four V CPUs with hyperthreading.If you need more specific VM sizing recommendations,microsoft says for a single session scenario, askthe software vendor specific to your workload.So if you are using, for example, AutoCAD,make sure to ask the vendor what arethe specifications required so you can do propertizing.So this is for single session recommendationsizing Recommendation what about the multisession?So on the same page, the multisessionrecommendations, microsoft will list the maximum suggestednumbers of user behavior, vCPU and theminimum VM configuration for each workload.They also say these recommendations arebased on Remote Desktop Workloads.So what is that?If we open it in a new tab totake a look and we go there remote DesktopWorkloads they basically give you different workload types light,Medium, Heavy, Power and they explain it to you.The reason they do this is because theyuse it in the multisession recommendation table.Here you can see, like, medium, heavy and power.So let's understand by going tothe new link we have opened.What are these workload types?Let's start with the Light one.Examples users doing basic data entry tasks,example applications, database entry applications, command linedinterfaces, okay, medium Workload types example users,consultant and market researchers.Example apps, database entry applications, command lineinterfaces, microsoft Word static web pages.We go into the heavy workload type exampleuser, software engineers, content creators, and example apps.All of the above.Also, you add to Microsoft Outlookmicrosoft PowerPoint dynamic web pages.For the Power workload types, exampleuser is graphic designers, 3D modelmakers and machine learning researchers.And also the example app includeeverything of the above a.Plus the Adobe photoshop, Adobe Illustrator, computer aideddesign CAD and computer aided manufacturing camp.So these are the typeof workloads provided from Microsoft.So we're given example users and example apps.This is going to be your reference to use this table.Again, the link I was in about the example users andapps and the workload type, you can access it from thislink here, so you can actually go and read farther ifneeded and you can use it for yourself.Let's go back to the Sizing suggestionfrom Microsoft for multisesion Sizing recommendation.So for the Lite workload type whichwas explained in the previous link.They recommend maximum of six users per vCPU and alsothey recommend the minimum VM with these specifications two vCPUs,8GB of Ram and 16GB of storage minimum.They give you example Azure instances to be used likethe D two, SV three F two, SV two Sstands of course for the premium storage SSD.Just for your information if you don't know already.And the profile container storage minimum is 30GB, sothey do the same for the medium workload type,a maximum of four users per vCPU and theseare the specifications for CPUs 16GB, Ram, 32 storageand they give you the suggested example Azure instancesd for SV three, F four, SV two andwith the same profile container storage minimum.Again everything you can actually tweak it or youcan manipulate the settings based on your actual user'sneeds and the information also from the vendor.But this is something you canuse as a reference from Microsoft.They of course continue the list with the Heavy workloadwith a maximum of two users Bare vCPU and thePower workload with a maximum of one user Bare vCPU.And they raised the specifications to six VCPUs, 56gb of Ram and 340gb of storage.So this is the reference and Microsoft documentation thatI also recommend for you to use for sizingyour virtual machines for your company or your customers.You will find a single sessionrecommendation and the multi session recommendation.Again, the link will be provided for youin the resources section of this lecture.So before going on to the next lecture, makesure to visit the resources section and to takea look at this Microsoft documentation yourself.

7. WVD Network Guidelines

This lecture is about network guidelinesfor WVD and I will usethis Microsoft documentation for the guidelines.This link will be provided for youin the Resources section of this lecture.So the Network Guidelines for Microsoft microsoftmicrosoft says when using a remote Windowssession, your network's available bandwidth greatly impactsthe quality of your experience.Different applications and display resolutions require different networkconfiguration, so it's important to make sure yournetwork is configured to meet your needs.And they give you a little naive the followingrecommendations applied to networks with less than zero 9%loss the recommendations that Microsoft will give you inthis documentation are for different areas depending on theapplication workload type and depending on the resolution aswell and the region you select.So let's explore what this documentation will provideus with first, depending on the applications.So the following table lists the minimumrecommended bandwidth for a smooth user experience.These recommendations are based on theguidelines in Remote Desktop Workloads.This is something we have seen in other lecturesand it basically describes for you the workload type,the example user and the example apps.You can read it yourself and you canfind it in our previous lecture as well.So let's go back to the documentation for thenetwork guidelines and it says if you have alight workload type, the recommended bandwidth is one fivemegabit per second, for medium is three, for heavyis five, and for power is 50.Now, basically this documentation just is aboutwhat is the bandwidth you need.So if you're having a company, usuallyyou will have something high already.And if you're working for this, for somebody orfor a customer, you need just to make surethey have something that can cover the needs.So once they deploy the workloads inWVD, everything is going to be fine.Now they give you a note.Keep in mind that the stress pattern yournetwork depends on both the application workloads output,frame rate and the display resolution.And they explain the relationship and things thatyou need to take care of for everything.Other scenarios can have their bandwidth requirementschange depending on how you use them,of course, such as video, voice conferencing,realtime communication and Streaming 4K video.So they ask you to make sure to load testthese scenarios and to try to do a simulation usingtools like Logan VSI and use very stress tests andload size once it comes to the display resolution.They also give you some recommended bandwidth basedof course, and some of the attributes.So the following table lists the bandwidth we recommendfor a smooth user experience at typical display resolution,with a frame rate of 30 frames per second.These recommendations apply for singleand multiple user scenarios.Keep in mind some of the cases will have under30 FPS, such as static test require less available bandwidth.So for this resolution you will use you needthis recommended bandwidth and so on and so onand need at least 15 megabits per second.Windows Virtual Desktop Experience The Azure regionyou are in can affect user experienceas much as network condition.Check out the Windows Virtual Desktop Experience estimator,which is something I have explained at thebeginning of this course of how to usethe Windows Virtual Desktop Experience estimator.So you need to make sure you choose theright Azure region with the minimum latency for you.Assistive Technologies so Microsoft also give youthis information for assistive technologies to keepin mind for the network guidelines.So this is the official Microsoft documentation fornetwork and lines when it comes to WVD.Again, the link will be provided to youin the resources section of this lecture.So make sure to take a look andto actually serve around and see it yourself.

8. Remote Desktop Clients to Connect to AVD Resources

This lecture is about Remote Desktop clients and how to connect to the Azure WVD resources. To connect to the resources you must use a client. There are different types of clients in this documentation, which I am also going to include in the Resources section of this lecture. Microsoft lists the supported clients. They have a Windows desktop client. They have a Web client, which is basically a URL.You just go to it and log in and that's it.They have a Marcos one and one for iOS. So you can use it for iPhones, iPads, and even the iPod Touch, and one you can download from the Microsoft Store Client. So let's actually explore these clients. If you go and open the Windows Desktop and if we go up in the Mac OS, iOS, and Android, these links. So it's just a guideline for installation and it gives you the URL to install the desktop client. So this is for Windows. This one is connected to Windows virtual desktop with the Web client. It’s just like a URL that you use. And it mentions the supported operating systems and browsers like Microsoft Edge, Internet Explorer, Apple Safari, Google Chrome, and so on. And you access the remote resources using this link. If I click on this link, it will ask me for a username and password, and if the username and password are correct, I will have access to my resources assigned to me by my company, which are the WVD resources. The same applies for the macros client. It applies to macros 1012 volts later, as well as in the installation and how to subscribe.

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