Very good article on Windows Azure. But a proximity placement group can be assigned to only one Azure resource group. However, the new Virtual Network feature mandates the use of affinity groups. An SAP application layer that's located through availability sets in the same Azure datacenters as the DBMS VM or VMs. But the number of supported fault domains can vary from region to region. Virtual Machines allows a significant expansion of the class of workloads that can be deployed to Windows Azure. Referencing an Availability Zone and an availability set when deploying a single VM isn't supported. You can choose Availability Sets for your Azure IaaS VMs to ensure high-availability. However, this use is mandatory for virtual networks while it is only advisable for cloud services and Windows Azure storage. Create an availability set that references the Azure proximity group. Because of decommissioning of hardware, Microsoft might build up capacities for a VM type you used in a different datacenter, rather than the one that you initially used. In this case, you'd have a one-to-many relationship between your resource group for production SAP systems and several proximity placement groups for your production SAP ERP, SAP BW, and so on. This sensitivity to network latency is why you need to achieve optimal network latency in SAP deployment projects. In the next step, you need to create the availability sets you want to use for the application layer of your SAP system. Zonal Services (Add the resource to a specific zone, for example VMs, Managed Disks, IP Addresses ) 2. The New-AzureAffinityGroup cmdlet creates an Azure affinity group in the current Azure subscription. To prevent these problems, Azure offers proximity placement groups. 2)Will placing the IaaS VMs in the same availability set allow them geolocate (East Coast >>> West Coast) together? In the attributes overview of your HANA Large Instances unit, you can also determine the name of the proximity placement group because it was created when your HANA Large Instances unit was deployed.

If you are an MSDN subscriber you can access $3,600 of Windows Azure benefits here. This new functionality has already been used to deploy various SAP systems. | Alex Zambelli's Microsoft Media Blog, Windows Azure Media Services Preview Launched! If you want to move a VM that is not part of an availability set into an existing proximity placement group, you just need to shutdown the VM and assign it to an existing proximity placement group. When you aim for optimal performance for your SAP system and limit yourself to a single Azure datacenter for the system by using proximity placement groups, you might not be able to combine all types of VM families within the placement group. An Azure proximity placement group is a logical construct. SAP applications based on the SAP NetWeaver or SAP S/4HANA architecture are sensitive to network latency between the SAP application tier and the SAP database tier. In this case, the maximum number of fault domains possible for the specific regions is two. Deploy the application layer VMs by referencing the availability set and the proximity placement group.

The name that appears in the attributes overview is the name of the proximity placement group that you should deploy your application layer VMs into. In that scenario, you might need to move the all the proximity placement group's VMs into another datacenter. They can often be run on the database tier in 500 microseconds or less. : Alex Zambelli's Silverlight Media Blog : The Official Microsoft IIS Site. To move the VMs of a complete Azure availability set to an existing proximity placement group that is scoped already, you need to shutdown all VMs of the availability set and assign the availability set to the existing proximity placement group through Azure portal, PowerShell or CLI. Given the above description of affinity groups … : Alex Zambelli's Silverlight Media Blog : The Official Microsoft IIS Site, Running ElasticSearch in a cluster on Azure | Thomas Ardal, Running ElasticSearch in a cluster on Azure | elmah.io Blog, Deploying an Entire Environment using Azure and PowerShell, Part 2 | The Wired Bedouin, Windows Azure: Virtual Machines & Affinity Groups | Jose R. Guay Paz, Introduction to Docker and Kubernetes on Azure, Migrating a VM from EC2 to Azure at 300 Mbps, Using Azure Monitoring Services API with Azure Cloud Services, Using Azure Monitoring Service API with Azure Virtual Machines. In most cases, the nature of these queries is simple. Note that it is not possible to migrate either a cloud or storage service into an affinity group after creation.