Re-protection of VM after failing over Azure

Question

Received the following error when tried re-protecting the vm after doing a failover. Can someone please point me in the right direction?

Error Details
Installing Mobility Service and preparing target
Error ID
539
Error Message
The requested action couldn't be performed by the Replication Provider.
Possible causes
The Provider action failed. Check other errors for more information.
Recommendation
Resolve the issue and retry the operation.
First Seen At
12/3/2021, 4:12:55 PM
Error ID
28089
Error Message
Virtual machine 'dev-web-001' under resource group 'dev' could not be updated. Details: 'The requested size for resource '/subscriptions/****/resourceGroups/dev/providers/Microsoft.Compute/virtualMachines/dev-web-001' is currently not available in location 'canadaeast' zones '' for subscription '***'. Please try another size or deploy to a different location or zones. See https://aka.ms/azureskunotavailable for details.'.
Possible causes
Check Azure error message for more information.
Recommendation
Resolve any errors and retry the operation.
First Seen At
12/3/2021, 4:12:55 PM

Answer 1

Once the test failover is successful, you should be able to re-protect VMs.

Regarding VM size availability, there could be two reasons:

1. There could be region availability constraints
2. There could be limitations for regions availability at subscription level

For the first one, you need to choose a different region as a workaround
For the second one, you need to contact Azure subscription management team by raising a support request to enable region availability for your subscription.

For your reference - https://learn.microsoft.com/en-us/answers/questions/644707/azure-site-recovery-vm-sizes.html?childToView=654045#answer-654045

Once the regions are enabled for your subscription you can re-protect your VMs in the desired region.

If re-protect option is grayed out:

Go to "Site recovery job" check for failed jobs and restart it. That way you can re-protect VMs.

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Answer 2

As the error message indicates, the zone which you are trying to has, the sku is not available. To verify it through PowerShell, try the following command and see the SKU is listed there.

Get-AzVMSize -Location canadaeast 

If the above command lists the VM size, the issue can be something related to the azure subscription's limitation. Another possibility is you are trying this in a 'spot instance', which is not currently available at the location