Homelab Academy / Modules
Independent application with evidence.
Module: Segmentation, Backup & Power
Activity type: Homework / independent application
Objective: Explain what each number in the 3-2-1 strategy represents.
Design a 3-2-1 backup plan for one real or hypothetical homelab service, such as a password manager, photo library, media catalog, source-code service, or home automation controller.
Identify the primary data, including databases, uploaded files, configuration, secrets, and required encryption keys.
Describe the two backup copies and the distinct storage or failure domains used by each.
Explain how the off-site copy is protected from production credential compromise.
Define a Recovery Point Objective and Recovery Time Objective based on service importance.
Define backup frequency, retention periods, encryption, monitoring, and ownership.
Write a restore-test procedure that restores into an isolated location and verifies application usability.
List at least five failure scenarios and state which recovery copy handles each scenario.
The plan should identify correlated risks rather than merely counting copies. It should include practical restoration evidence, credential separation, retention, key recovery, and a clear explanation of any remaining single points of failure.