Is it possible to simulate Zone Outage?

Davide Moroni 0 Reputation points
2023-12-05T15:48:01.7733333+00:00

Hi support,

we implemented a zone redundant architecture:

1LB -> 2 SUBNETS -> 2 VM -> n Disks..

We would like to simulate zone outage, to test service resiliency

How can we do that?

Thank you

Regards

Davide Moroni

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2 answers

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  1. Dillon Silzer 54,931 Reputation points
    2023-12-05T16:38:35.61+00:00

    Hi Davide,

    Have you tried shutting down a VM in one of the Availability Zones? This could be on way to simulate a VM outage in one of your zones and see if the other zone picks up the traffic.

    You can also take other pieces of your setup a part to simulate how traffic would flow. From experience, it may take 5 or so minutes for the switch to happen. This should help you get a better observation of how it works.

    If this is helpful please accept answer.

    1 person found this answer helpful.
  2. kobulloc-MSFT 25,561 Reputation points Microsoft Employee
    2023-12-11T22:14:29.48+00:00

    Hello, @Davide Moroni !

    How do I simulate a zone outage?

    There are a couple of different approaches to this. The first, as Dillon Silzer mentioned, is to manually turn off the service that you want to simulate an outage for. There are examples of this in the official documentation and blogs for different services.

    The second approach would be to utilize a dedicated service like Azure Chaos Studio to test resilience against real-world incidents, like outages or high CPU utilization on virtual machines (VMs). Given that you want to test the resiliency of the entire architecture, this is likely going to be the most organized and documented approach as you can use different targets and capabilities:

    I hope this has been helpful! Your feedback is important so please take a moment to accept answers.

    If you still have questions, please let us know what is needed in the comments so the question can be answered. Thank you for helping to improve Microsoft Q&A!

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