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I can't find any instructions on how to remove an azure VM from an availability set. Is this even possible or do I have to delete then re-create the VM with the existing disks?

I have some VMs witch where created as single instances in availability sets, and want to remove them.

Raghavendra
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nobodyofnaught
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2 Answers2

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in ARM: The availability set can only be configured when creating a virtual machine. You must recreate the virtual machine to move it in or out of an availability set.

Elham Karshenas
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You can add, or remove, a VM to/from an availability set without deleting/re-creating.

If you're using PowerShell, you have:

  • Remove-AzureAvailabilitySet for classic VMs
  • Remove-AzureRmAvailabilitySet for Resource Manager VMs

Likewise, you can do this in the portal. For example, here's one of my 'classic' VMs in an availability set:

avail set

The highlighted blue box shows that my VM is in an availability set. To remove it, I just select the item above it (Not part of an availability set) and save:

removing availability set

David Makogon
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    'Remove-AzureRmAvailabilitySet' is for deleting an Availability Set not removing VMs from a set. And as you can see from this screenshot the UI does not provide a way of removing an existing VM from a set http://i.imgur.com/p2FMeGp.png I'm pretty sure the answer to my question is No you cannot remove an exising VM from an Availability set. – nobodyofnaught Mar 21 '16 at 22:42