VM does not failover to secondary Availability zone after primary VM crashed

Arjun 1

Primary VM has crashed, but since the VM is setup in 2 AZ's, I expect to connect to secondary zone VM automatically. That doesnt happen.

vipullag-MSFT 24,206 Reputation points Microsoft Employee

2020-06-11T12:15:50.777+00:00

@Arjun

Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics.

1 answer

Manu Philip 16,986 Reputation points MVP

2020-05-21T15:07:24.713+00:00

Hello @Arjun ,

Please check if you are meeting all the requirement for a failover in case of a crash

https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-architecture#replication-process

You may please do a failover test and understand, if it meets all the requirements

Thanks,
Manu
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Arjun 1 Reputation point

2020-05-21T16:21:16.603+00:00

hi Manu,

Thanks for the reply.

I understand that failover will work when setup using azure site recovery. But I havent set up that
Instead I am trying to see what happens when a VM that is setup with infrastructure redundancy using Availability zone crashes?
I have setup a VM selecting availability zone option as 2. So that means my VM should be running in 2 data centers. When one crashes, the other should come up. Which is not happening. Or am I missing something here?

Thanks
Arjun

Manu Philip 16,986 Reputation points MVP

2020-05-21T19:35:16.047+00:00

Hello Arjun,

When you put Azure virtual machine in availability set feature, VMs are protected from 'Azure hardware failure or software updates'.

Combine the Azure Load Balancer with an availability zone or set to get the most application resiliency

Thanks,
Manu
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