- Lab
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Restore and Validate an AWS Workload After Failure
Practice the recovery an AWS infrastructure engineer performs when a workload stops serving. You'll start from a customer portal that returns an error after an overnight maintenance job, establish what the portal should look like when healthy and confirm exactly how it is failing, survey the account for the team's recovery sources and identify the ones that bring the portal back, restore the application and then its customer data behind the Application Load Balancer, retire the failed server safely, prove the restored portal serves the right data through its intended path and reports healthy, and record the recovery for the postmortem and the runbook. You'll work entirely in the AWS Management Console. When you finish, you'll be able to tell running from serving and healthy from restored, find and use recovery sources under pressure, prove a restore on the path that matters, and leave evidence your team can act on.
Lab Info
Table of Contents
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Challenge
Establish the portal's expected serving behavior and confirm the failure
Read the portal's expected healthy state in the runbook and compare it with the current portal response, target health, and server attachments. Confirm the failure and identify the missing catalogue volume.
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Challenge
Identify the available recovery source
Identify the team's recovery sources and distinguish the catalogue snapshot from the golden image's root snapshot. Confirm what each source contains and whether AWS Backup holds a completed backup of the portal.
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Challenge
Restore the portal from the recovery source
Restore the application on a replacement server and observe its health before the catalogue returns. Restore the catalogue from its snapshot, return the portal to service, and retire the failed server safely.
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Challenge
Verify the restored portal serves its intended path and reports healthy
Verify the restored portal, catalogue values, health and readiness responses through the load balancer against the runbook. Confirm that the replacement is the sole Healthy target and trace its catalogue volume back to the selected snapshot.
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Challenge
Record the recovery timeline, actions taken, and validation results
Save a recovery record covering the recovery sequence, actions, resource IDs, and validation results. Reopen the record to confirm it persists and use CloudTrail Event history to corroborate the recovery actions that have arrived.
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