M27 - Storage Lab: External Drive Setup
Storage Lab: External Drive Setup
Walk through the storage setup sequence conceptually and in safe practice steps so external-drive preparation makes sense before touching real data.
- Describe the normal sequence for preparing a new storage device.
- Practice the inspection and verification parts safely.
- Recognize which steps should only happen on a disposable or truly new drive.
The Goal
This lab is about sequence and caution, not about teaching people to erase the wrong disk.
You will practice the safe parts directly and treat the destructive steps as “only on a truly new or disposable drive” work.
Storage Safety Boundary
If you are not completely sure which device is the external drive, stop. Storage mistakes are some of the easiest mistakes to make and some of the hardest to undo.
Step 1: Identify the Device
Start with observation only.
Get-Disk Get-Volume
lsblk df -h
At this stage, the goal is to know which device is new or external and which ones are already in use.
Step 2: Confirm the Risky Step Before Doing It
If the drive is truly new and disposable, the typical sequence is:
- identify the correct device
- partition if needed
- create the filesystem
- mount it
- verify that it appears where you expect
The dangerous step is the one that writes a new filesystem or changes partition structure. That is where being on the wrong device causes the most damage.
Step 3: Practice the Verification Loop
Even without formatting a real device, you can practice the verification habit.
Ask after each stage:
- am I looking at the correct device name?
- did the mounted view change where I expected?
- does the reported size and filesystem type match the plan?
That habit matters as much as the commands.
Example Inspection Pass
Inspect the disk list, note the size and state of the external drive, and verify the volume list after any change.
lsblk df -h mount | tail
Move On When
You are ready for networking when you can explain the setup sequence for an external drive and identify where the true risk lives in that sequence.