Hands-on emulator lab · 6–10 min
Share one folder across apps — EFS and EC2
Create a shared file-system record and inspect its lifecycle policy.
These actions use an isolated AWS Emulator. It stores API state locally; it does not create paid cloud resources or run the full hosted AWS service.
Your goal
Create a shared file-system record and inspect its lifecycle policy.
Why this matters
Shared file storage needs a plan for files that become less active. You will create an encrypted file-system record and save a lifecycle policy. No network drive is mounted in this exercise.
Words you will use
EFS is a managed network file system. Mounting makes it available as a folder. NFS is the network protocol used to reach it.
How to proceed
Start a fresh emulator, read each numbered step, and enter the practice settings shown. Run the action, inspect its API receipt, then continue. Finish lab checks the emulator state again before saving your progress.
1. Create a file system
Create an encrypted EFS file-system configuration. The returned file-system ID identifies the resource for the following steps. No network file system is mounted in this lab.
2. Save a lifecycle policy
Configure the transition of eligible files to infrequent-access storage after 30 days. This is a saved policy; the emulator does not age files for this exercise.
3. Retrieve the policy
Read the lifecycle configuration using your file-system ID. Find the transition rule in the response and confirm that it matches the setting you saved.
Practice, then check your understanding
Perform the actions yourself and inspect the returned state. Errors keep your settings so you can retry. Starting another lab clears the previous live environment. Earned XP is kept, and signed-in achievements sync to your account. Replay does not award duplicate XP.
Read the official AWS documentation for service behavior and production details.