In Azure, Availability Sets in Azure enable let users to separate workloads for high availability. All of the VMs in an availability set must be in the same Azure Virtual Network, which means they must be in the same Abiquo virtual datacenter.
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To add a group of VMs to |
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a basic load balancer in Azure, you must have all the VMs in the same availability set. |
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If you do not add your VMs to an availability set, they will effectively be in different availability sets |
After an upgrade, to display availability sets that were not present in the platform with deployed VMs, the user should synchronize the virtual datacenter or networks.
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To display the availability sets in an Azure region:
Go to Cloud virtual datacenters view → Locations
Select an Azure location
Go to Network → Availability sets
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You can create an availability set at the regional level and later assign it to a virtual datacenter.
To display the availability sets in an Azure virtual datacenter:
Select the virtual datacenter
Go to Network → Availability sets
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Create an availability set
You can use availability sets to ensure high availability for your VMs in Azure. Each VM in the availability set will deploy on separate, isolated hardware, in a cluster. This is similar to the platform's concept of anti-affinity layers in private cloud. To attach Azure VMs to a basic load balancer, you must add them to the same Availability set. All of the VMs in an Availability set must be in the same Azure Virtual Network, which means they must be in the same virtual datacenter but they can belong to different Resource groups.
To create an availability set:
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Go to
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myCloud → Locations
Select a location OR
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select an Azure virtual datacenter
Go to Network → Availability sets
Click the + add button
Complete the dialog and click Save
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Create an availability set
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| title | Click here to display details of create availability set |
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Field
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Value
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Name
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The Name of the availability set
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must be unique in your
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Location
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location
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Fault domains
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The virtual datacenter where you will use the availability set
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Resource group
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The platform will create the availability set in the selected Resource group
From Azure documentation: "VMs in the same fault domain share common storage as well as a common power source and network switch".
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From Azure documentation: "An update domain is a group of VMs and underlying physical hardware that can be rebooted at the same time."
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For more information about Azure Availability sets, see Azure documentation, for example, https://docs.microsoft.com/en-us/azure/virtual-machines/windows/tutorial-availability-sets .
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Assign an availability set to a VM
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