Windows host zone redundancy
Test your Windows-hosted service's availability when a randomly selected availability zone becomes unreachable. Verify that traffic fails over to secondary zones.
Experiment types
Blackhole
Targets
Windows
Length
10 minutes
How this Scenario works
This Scenario drops network traffic between your Windows hosts in one availability zone and the rest of your infrastructure, simulating a complete zone outage. This forces your load balancers and routing mechanisms to redirect traffic to Windows hosts in the remaining zones.
Why run this Scenario?
- Demonstrate that your Windows infrastructure is truly zone-redundant, not just deployed across multiple zones.
- Verify that load balancers detect the zone outage and redirect traffic to healthy Windows hosts in other zones.
- Test whether your secondary zones have enough Windows host capacity to handle the traffic surge from the failed zone.
- Ensure that Windows failover clustering and traffic routing return to normal when the zone recovers.
What to expect when you run it
When a zone fails, Windows hosts in secondary zones automatically absorb the traffic with no interruption in service.
More Scenarios to try
Kubernetes packet loss
Ensure your Kubernetes systems can detect and route around resources that fail health checks. This Scenario gradually increases packet loss to validate liveness/readiness probe and load balancer behavior.
Container packet loss
Ensure your containerized systems can detect and route around resources that fail health checks. This Scenario gradually increases packet loss to validate health check and load balancer behavior.
Windows packet loss
Ensure your Windows systems can detect and route around resources that fail health checks. This Scenario gradually increases packet loss to validate health check and load balancer behavior.
Avoid downtime. Use Gremlin to turn failure into resilience.
Gremlin empowers you to proactively root out failure before it causes downtime. See how you can harness chaos to build resilient systems by requesting a demo of Gremlin.
.svg)