LAB-FS-09 - Find Large Files and Hidden Space
Inspect where space is actually going so low-disk situations become evidence-based instead of guess-driven.
FS File System Mastery
Find Large Files and Hidden Space
Inspect where space is actually going so low-disk situations become evidence-based instead of guess-driven.
35 min INTERMEDIATE BOTH
Before this lab
What success looks like
- Inspect where space is actually going so low-disk situations become evidence-based instead of guess-driven.
- Repeat the workflow without copy-paste or step-by-step prompting.
Safety notes
- This lab is inspection-first. Do not delete real data while practicing the discovery workflow.
Part A: The Field Guide
Low-space work becomes safe when you separate:
- which disk is actually full
- which path is large
- whether the large path is safe to clean
Part B: The Drill Deck
G Guided Step by step - type exactly this and compare the result >
Exercise G1: Confirm the full volume
Identify which disk, volume, or mounted filesystem is actually low on space.
Exercise G2: Measure the largest paths
Inspect the biggest folders or files in a safe practice area or on a known-safe system path for observation only.
Exercise G3: Name safe versus unsafe cleanup targets
List one category that is often safe to review for cleanup and one that should make you pause.
M Mission Real scenario - no hints, combine multiple skills >
Mission M1: Explain the cleanup plan
Explain, in order:
- how you would confirm the full disk
- how you would identify the biggest paths
- how you would choose the safest first cleanup target
What to do next
Best next step LearningReturn to the related lesson if you want the concept explained more deeply.