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Introduction à Windows Azure
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Slide Objectives:Explain how Microsoft thinks of the cloudSpeaker Notes:There are numerous terms and definitions floating around in the industry for “the cloud”, “cloud computing”, “cloud services”, etc.Microsoft thinks of the cloud as simply an approach to computing that enables applications to be delivered at scale for a variety of workloads and client devices.The cloud can help deliver IT as a standardized service…freeing you up to focus on your business
Slide Objectives:Explain how Microsoft thinks of the cloudSpeaker Notes:There are numerous terms and definitions floating around in the industry for “the cloud”, “cloud computing”, “cloud services”, etc.Microsoft thinks of the cloud as simply an approach to computing that enables applications to be delivered at scale for a variety of workloads and client devices.The cloud can help deliver IT as a standardized service…freeing you up to focus on your business
Slide Objectives:Explain the three established terms in the industry for cloud servicesSpeaker Notes:There is a lot of talk in the industry about different terms like Platform as a Service, Infrastructure as a Service, and Software as a Service.Since PDC08 when we first announced the Windows Azure our focus has been on delivering a platform as a service offering where you can build applications. Where the platform abstracts you from the complexities of building and running applications. We fundamentally believe that the future path forward for development is by providing a platform. In fact, as you’ll see in a few minutes, we believe that there are a number of new capabilities that should be delivered as services to the platform.Notes:There is a lot of confusion in the industry when it comes to the cloud. It’s important that you understand both what is happening in the industry and how we think about the cloud. This is the most commonly used taxonomy for differentiating between types of cloud services.The industry has defined three categories of services:IaaS – a set of infrastructure level capabilities such as an operating system, network connectivity, etc. that are delivered as pay for use services and can be used to host applications. PaaS – higher level sets of functionality that are delivered as consumable services for developers who are building applications. PaaS is about abstracting developers from the underlying infrastructure to enable applications to quickly be composed. SaaS – applications that are delivered using a service delivery model where organizations can simply consume and use the application. Typically an organization would pay for the use of the application or the application could be monetized through ad revenue. It is important to note that these 3 types of services may exist independently of one another or combined with one another. SaaS offerings needn’t be developed upon PaaS offerings although solutions built on PaaS offerings are often delivered as SaaS. PaaS offerings also needn’t expose IaaS and there’s more to PaaS than just running platforms on IaaS.
Slide Objectives:Explain the differences and relationship between IaaS, PaaS, and SaaS in more detail.Speaker Notes:Here’s another way to look at the cloud services taxonomy and how this taxonomy maps to the components in an IT infrastructure. Packaged SoftwareWith packaged software a customer would be responsible for managing the entire stack – ranging from the network connectivity to the applications. IaaSWith Infrastructure as a Service, the lower levels of the stack are managed by a vendor. Some of these components can be provided by traditional hosters – in fact most of them have moved to having a virtualized offering. Very few actually provide an OSThe customer is still responsible for managing the OS through the Applications. For the developer, an obvious benefit with IaaS is that it frees the developer from many concerns when provisioning physical or virtual machines. This was one of the earliest and primary use cases for Amazon Web Services Elastic Cloud Compute (EC2). Developers were able to readily provision virtual machines (AMIs) on EC2, develop and test solutions and, often, run the results ‘in production’. The only requirement was a credit card to pay for the services.PaaSWith Platform as a Service, everything from the network connectivity through the runtime is provided and managed by the platform vendor. The Windows Azure best fits in this category today. In fact because we don’t provide access to the underlying virtualization or operating system today, we’re often referred to as not providing IaaS.PaaS offerings further reduce the developer burden by additionally supporting the platform runtime and related application services. With PaaS, the developer can, almost immediately, begin creating the business logic for an application. Potentially, the increases in productivity are considerable and, because the hardware and operational aspects of the cloud platform are also managed by the cloud platform provider, applications can quickly be taken from an idea to reality very quickly.SaaSFinally, with SaaS, a vendor provides the application and abstracts you from all of the underlying components.
Speaker Notes:Windows Azure runs on datacenters around the worldEnabling you to deploy and run applications and infrastructure close to your customers. Notes:Windows Azure services such as compute and storage are now available in 8 worldwide datacenters with an additional 24 Content Delivery Network endpoints. You can’t have a real cloud without a data center.
Speaker Notes:21,56 minutes / month4,38 hours / yearWindows Azure services are backed by a monthly Service Level AgreementGiving you the confidence to deliver applications and solutions to your customers
Speaker Notes:With Windows Azure you pay only for what you useUnprovision your applications and virtual machinesEnabling you to avoid up front cost and scale as your business grows.
Speaker Notes:Browse to the Windows Azure web siteFor developers, we have a rich set of developer centersWe offer dev centers in multiple languages. If you’re a .NET developer…If you’re a Node developer, you can do the same thingAll of the SDKs are released as open source under an Apache 2 license. Sign-up for a free trialNavigate to different portal areas focusing on dashboard
Speaker Notes:As you saw you can use both Windows Server or LinuxYou can install any software you want in the virtual machine. It’s your virtual machineYou can also setup a virtual private network to connect VMs to your on-premises infrastructure
Speaker Notes:Provision a new Linux machine. Provision a Windows machine.
Speaker Notes:There are a few aspects of the Windows Azure Virtual machines feature that I want to talk more about.One of the ability to have Virtual Machine Portability between Windows Azure and different environments. All of the virtual machines running in Windows Azure are using what we call the VHD file format. VHD is an open specification that we’ve released. We use VHDs in a variety of other products including Windows Server virtualization.
Speaker Notes:The benefit of using the same file format is that it’s really easy open file format is that it’s really easy …The benefit is that since we’re using an open file format, you have the ability to take a VM from your own data center and upload it to Windows AzureYou don’t have to run an import / export process. You simply upload it and it worksThere’s no conversion tools or agent you have to install in the VM, it just works. [Transit to next slide]
Speaker Notes:You can also take, for example, either the Windows or Linux VMs that we created in Windows Azure and we make it really easy for you to download the VHD locally and you can then boot it up on a local server in whatever environment that you want. Again you don’t have to export it or convert it, just click and download it. It’s not a one way street[Transit to next slide]
Speaker Notes:The other thing this offers is that it not only allows you to run in Windows Azure as a data center but it also allows you to run in other service providers as well.You can take VMs from any of these locations and move them into another data center[Transit to next slide]
Speaker Notes:The end result is that you have a lot of flexibility, a lot of portability, and ensures that you have no lock-in
Speaker Notes:The other neat thing that we’re doing with Windows Azure now is making it possible for you to mount durable drives to your virtual machine. We’re trying to do it in way that it is very reliable, consistent, and delivers a high performance.One of the things that’s different about how we enabled it is that when you mount a drive either in the portal or in the command line we are backing the disk with the Windows Azure Storage system that we’re running in the cloud todayThere are a couple nice characteristics about the storage system.Replication One is that we triple replicate the content within the data center. If a disk ever goes bad that you data is on then we have two other copies of the data that we can work with and we do not have any interruption of serviceWe can then spin up a new replica once we detect a disk is badFrom your VMs perspective you never know that an issue actually occurred[Transit to next slide]So you get much more reliability and an always on experience even when hardware failsNotes:Mentioned that Windows Azure Virtual Machines are backed by a durable store. Let’s spend a few minutes talking about how this works.
Speaker Notes:This is a small sampling ..We’ve talked about a few of these building block services. In addition to Database, Storage, Caching, Messaging, and Identity…Big data - We also have services for managing big data…Traffic Manager - …Media Services - …Provides a managed service that allows you to create, manage, and distribute media. You can target any type of deviceWe’ll provide full analytics on top of it. CDN – A content delivery network for putting your content closer to end users. We’ll drill into more details on several of these services later today and You will see this list grow in the months and weeks ahead
Speaker Notes:Another thing that is nice about the Windows Azure Storage solution is that we have support for Continuous storage geo-replicationWhat this means is that whenever you save something in the storage system, in the background we can automatically replicate the data to another datacenter. We guarantee that these data centers are several hundred miles apart so that in the case of a natural disaster or a complete data center failure you can be ensured that a copy of your data exists somewhere else. You don’t have to set anything up to enable it. It’s automatically enabled by default.You can turn it off if there are policy reasons why you wouldn’t want it enabled. The end result is that you can deliver more robust solutions with even greater integrity
Speaker Notes:TransitionVirtual machine capabilities are one of the great features as part of this Azure release.Next one I want to talk about are Windows Azure Web SitesBasically with Windows Azure Web Sites there is a managed service that you can use to run web sites and web APIs. You don’t have to worry or think about VMs, servers, or infrastructure. You can simply focus on building and deploying HTTP based applications.Enables you to build web sites using ASP.NET, Node.js, or PHPAllows you to use any tool and any operating system to build these sites including Windows, OS X, and Linux. You can easily deploy these sites using the tools and infrastructure you know. We support several flexible deployment options including FTP, GIT, and Team Foundation ServicesWhat is nice about this offering is that not only does it enable to very quickly get going, but it also allows you to start with a free offer in a shared environment. You can then scale up these sites using reserved instances for higher performance and isolation and scale out these sites as your web site becomes successful and you have increased load.
Speaker Notes:I’m going to show you three different web sites to show you the broad spectrum of scenarios that we’re enabling.First demo – a web site from a gallery.Second demo – new asp.net web site.Third demo – You can publish from TFS / Git / Dropbox
Speaker Notes:We’ve talked about Virtual Machines and we’ve talked about Web Sites, now let’s talk about Cloud ServicesCloud Services is another model we support for building applications. Enables you to build what we sometimes refer to as infinitely scalable applications. They can support 1 to hundreds or thousands of courseSupport not only web based deployments, but also multi-tier architectures where you might have a combination of front ends, middle tiers, as well as virtual machines running as part of your solution.Supports automated application management, so it is really easy to deploy, scale out, isolate, and recover from any type of hardware failure. As well as support for automated updates.
Speaker Notes:Possible demos:Continue with previously built ASP.NET web site and convert it to a Cloud Service.Create a new Cloud Service with a Web Role and a Worker Role with Service Bus Queue. Use Server Explorer to generate test messages to be handled by the Worker Role (set break point in Worker Role to observe the message).
Transition:Let’s spend a few minutes talking about what happens when we deploy a cloud service in Windows Azure.
Speaker Notes:One of the other things we do with Windows Azure to enable that is provide a bunch of Application Building BlocksThese are managed services that we run that provide a lot of value so you can avoid standing up the infrastructure for common capabilitiesYou always can stand up VMs and put anything you want in itBut in a lot of cases you will find that we have built in services that we deliver or that are delivered by our partnersWhat’s cool is that you can use any of these services with a VM, with a Web Site, or with a Cloud Service – so you have flexibility in how you will consume them.
Speaker Notes:All of these services can also be used from multiple languagesWe now have as part of our developer center on WindowsAzure.com support for multiple different languages including .NET, Node, Java, and PHP.One of the new languages that we’re now enabling is Python with a complete SDK and dev center. For each of these we provide libraries that you can consume that call into the REST APIs that we expose for the building block services. You can also call the REST APIs directly
Speaker Notes:All of the libraries are hosted on GitHub under an Apache 2 licenseSo you can both see the source and contribute back to the source
Speaker Notes:Let’s walk through some of the building block services that we’re providing and in particular highlight some of the new features of these services. If you’ve been using Windows Azure you maybe familiar with some of these services. However, there are several new features we’re enabling with all of them. The first one I’m going to talk about is the SQL DatabaseSQL Database is a service we’ve had for a while as part of Windows AzureIt provides a relational SQL Server database engine in the cloudWe run the SQL engine for you, we do all of the clustering and availability work for you, so you don’t have to worry about standing up your own clustered environment. It’s a fully managed serviceWe also apply security patches and monitor the systemEarlier this month we also released the SQL Reporting support, so you can do reporting and business intelligence on top of the data you store in the SQL database
Speaker Notes:Provision a new SQL database[Optionally] connect to the server using tools such as SSMS
Speaker Notes:We have a great storage system.We talked about this earlier as part of virtual machines for mounting drives. You can think of blob storage as a highly available, scalable, and secure file system in the cloud. You can store any type of data you want in it. You can optionally expose storage through some HTTP URLs and make it public or you can make it private. Similar to databases, you can stand up a new storage account in a few minutes. Continuous geo-replication is enabled by default for storage accounts.
Speaker Notes:One of the cool things that we’ve just introduced is a new storage view within the management portalJust like with VMs, Web Sites, and Cloud Services, this gives us the ability to see how your storage system is being used.To turn on storage analytics, you can simply go to the configure tab and enable analytics. You will then start capturing metrics about how your storage account is being used. You can see information such as the number of HTTP requests to your data. We’re also now surfacing your SLA availability directly within the portal. So you can see if there have been any availability issues and see in real time if you SLA is being met. Our SLA for storage not only includes availability but we also measure latency So if we’re ever slow in the storage system, then we count that as an availability issue and it goes against your SLA. We also measure latency for storage
Speaker Notes:We now have a new distributed cache feature in Windows AzureIt is a low latency, in-memory cache that you can stand up as part of our application It’s elastic so you can dynamically grow or shrink the cache at will, based on how your application is doingYou don’t have to modify any application code or redeploy your application to increase or decrease the cache size. Instead just go into the portal say you want more roles and Windows Azure will automatically spin them upIt also has high availability support. So you can indicate when you cache something that you want to pin the data on at least two cache servers, so if there is a hardware failure you will not loose any data.The Distributed Cache can be used from any language. It now supports the Memcach’D protocol, so if you have apps that use Memcached today you can simply point them to the new distributed cache and they will work with no code changes required.
Speaker Notes:So what happened? Let’s walk through an example with 4 web roles. Basically if I spin up my application and I have 4 web roles and I say use 300MB for each role…as soon as they startup in Windows Azure we will ring join the roles together. This will create a uniform 1.2GB distributed cache Then any of the roles that save the twitter data, regardless of whether the data is stored locally or on another role, any of the roles will be able to retrieve it in under a milisecondAs you spin up more roles inside your application using the management portal as I showed earlier, Windows Azure will automatically keep adding more roles and caches and your cache can grow or shrink on demand.
Speaker Notes:You can also go into your project and say you want a dedicated worker role that is just running the cache.In this case you would not be using any your memory in an instance for the web server, making it all available to the cache. Again you can choose the cache size you want, up to an extra large instance which would have 12GB of available memory in each role. [transit to next slide]
Transition:Continue last slideSpeaker Notes:Again you can scale up or scale down as needed and we will automatically add and remove the cache for you. High AvailabilityIf we ever know a machine is going down, for example, you say that you want to remove it from the application then we will actually spend a minute moving all of the data onto other nodes if there’s memory available before we actually take down the machine.So you don’t actually loose even in a shutdown situation. Programming LanguagesAgain you can access this in any language including using the Memcach’d interface
Speaker Notes:Fortune 1000 is the list is of the 1000 largest American companiesYou can integrate with anyone using Active DirectoryOnce you integrateYou can also take advantage of our new graph API
Speaker Notes:We also have a bunch of new service bus capabilitiesThe Service Bus is a managed service that provides secure messaging and relay capabilities.It’s great for integrating cloud based solutions with on-premise environments in a very secure way and it enables a very loosely coupled architectureWith the new Windows Azure SDK and Tools for Visual Studio, you can now view information about the service bus directly from within Visual Studio. We are also now introducing cross platform libraries so you can use service bus from any OS whether it’s a VM, web site, or Cloud Service and with any of the languages we support.
Slide Objectives:Explain that there are different VM instance sizes available within Windows AzureSpeaking Points:---Speaking Points:One of the key areas of feedback has been to reduce the cost and size of Windows Azure instances. At PDC we will announce..Notes:(*) 20GB with a limitation on VHD size if they are deploying VMRole on XSmall: the VHD can only be up to 15GB.each tenant can support 20 instances just like regular subscriptions with Small VM. We do not scale based on core counts.There is no SLA on the network bandwidth for each VM size as this resource is shared among all the VM. That said, we need to provide guidance for customer so they could design their applications correctly. From the engineering side, this is what we mean by Low, Moderate and High. • Low currently means 0-15Mbps with short burst up to 25-50Mbps (Megabit/s). These are sufficient for some web sites with low traffic. • Moderate means 0-100Mbps with short burst up to 200Mbps (100Mbps is the norm). This is what we currently reserve for the Small VM.• High means 200-800 Mbps. If you divide this into 3 spectrums for Medium, Large and XL. Then Medium is in the low end, Large hovers around the middle zone and of course XL takes the high-end spot.These rates should be used as guidance. Nothing can beat a test run to see what the application requires but using these bandwidth ranges, hopefully it reduces the guess work for the customers