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Aim / Objective

To design a robust enterprise data backup plan adhering to the 3-2-1 backup strategy; evaluate Full, Incremental, and Differential backup schemes; create Windows System Restore Points; perform File History / disk image backups; and simulate a disaster recovery data restore scenario.

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Hardware & Software Requirements

Hardware Components

✓ PC running Windows 10/11 or Linux
✓ External Storage Media: USB 3.0 External Hard Drive / High-Capacity Flash Drive (>= 32GB)
✓ Secondary storage partition on the local disk (`D:` drive)

Software, OS & Tools

✓ Windows Built-in Utilities: System Restore (`rstrui`), File History, Backup and Restore (Windows 7 / `sdclt.exe`), `wbadmin`
✓ Disk Imaging Applications: Macrium Reflect Free / Clonezilla / AOMEI Backupper
✓ CLI backup utilities: Linux `rsync` / `tar` / Windows `robocopy`

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Teacher's Lab Delivery Guide

Essential briefing notes, pedagogy, and setup tips for lab instructors

Faculty Exclusive

⏱ 5-Minute Pre-Lab Lecture Briefing:

Teach the famous industry proverb: "There are two types of computer users: those who have lost data, and those who are about to lose data." Introduce the 3-2-1 rule: 3 copies of data, on 2 different media types, with 1 copy stored offsite/cloud. Contrast file-level backup with full disk imaging.

📝 Key Concepts to Write on Whiteboard:

The 3-2-1 Backup Rule
Backup Types comparison:
- Full Backup: Backs up all selected files; resets the Archive bit
- Incremental Backup: Backs up only files changed since the *last* backup (fastest, lowest storage, but restore requires full + all intermediate incrementals)
- Differential Backup: Backs up all files changed since the *last full* backup (slower, but restore requires only full + latest differential)
System Restore Points (Volume Shadow Copy Service - VSS) vs System Image
RPO (Recovery Point Objective) and RTO (Recovery Time Objective)
Testing backup integrity through simulated restore

⚙ Pre-Class Lab Setup:

Have students create a dummy folder named "Important_Data" with text files and sample images. Guide them through modifying and recovering previous versions.

⚠ Common Student Pitfalls & Fixes:

Students believe creating a System Restore Point backs up their personal files (Word docs, photos). Explain clearly that System Restore only snapshots Windows registry, drivers, and system files—NOT personal documents.

🛡 Lab Safety & ESD Precautions:

Never write backups onto the exact same physical drive partition where original files live—if the disk crashes, both original and backup are lost.

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Step-by-Step Practical Procedure

1

Create a Windows System Restore Point

Press `Win + R`, type `sysdm.cpl`, and go to the "System Protection" tab. Select drive `C:`, click "Configure" to enable system protection and allocate 5% disk space. Click "Create...", name it "Pre_Lab_RestorePoint", and wait for creation confirmation.

Command / Action:

Shortcut: sysdm.cpl -> System Protection -> Create Restore Point

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Teacher Note / Pro-Tip: System Restore uses the VSS (Volume Shadow Copy) service to freeze system state without locking the disk.

2

Configure Windows File History for Automated File Backup

Connect an external USB drive. Open Control Panel -> "File History". Select the external drive as target. Click "Turn on". Add the "Documents" or "Important_Data" folder. Click "Run now" to perform an immediate snapshot backup.

Command / Action:

Control Panel -> File History -> Select Drive -> Turn On

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Teacher Note / Pro-Tip: File History automatically keeps hourly version histories of modified user documents.

3

Simulate File Deletion and Execute Restore

Intentionally delete a file from the "Important_Data" folder and empty the Recycle Bin. Right-click the folder -> "Restore previous versions" or open File History. Browse the timeline, select the deleted file, and click the green "Restore" button.

Command / Action:

Action: Right-Click Folder -> Restore Previous Versions

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Teacher Note / Pro-Tip: Notice how the deleted file reappears at its exact original location and timestamp.

4

Perform Incremental CLI Backup with Robocopy / Rsync

In Command Prompt, execute a mirrored differential/incremental directory sync using `robocopy` with archival flags.

Command / Action:

robocopy C:\Important_Data D:\Backup_Data /E /ZB /COPYALL /R:1 /W:1

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Teacher Note / Pro-Tip: In Linux, run `rsync -avz --delete /source/ /destination_backup/`.

5

Evaluate Full vs Incremental vs Differential Storage Needs

Calculate total storage required over a 7-day backup schedule comparing Full Daily vs Full + Daily Incremental vs Full + Daily Differential given a 100GB base and 10GB daily change rate.

Command / Action:

Calculation: Full (700GB) vs Incremental (160GB) vs Differential (310GB)

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Teacher Note / Pro-Tip: Incremental saves the most storage space; Differential offers faster recovery with lower restore risk.

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Interactive Hands-On Lab Simulator

Practice and test concepts virtually before or after performing on physical lab equipment

Live Interactive

Loading simulator...

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Observations & Student Lab Record

Students are required to record the following measured parameters, hardware specifications, and output status into their physical lab journals:

Backup Strategy	Backup Speed	Storage Consumed (7 Days)	Restore Complexity	Failure Risk
Full Backup Daily	Slowest	Very High (100GB x 7 = 700GB)	Simplest (Restore 1 single image)	Lowest (Every set is self-contained)
Full + Daily Incremental	Fastest	Lowest (100GB + 6x10GB = 160GB)	Complex (Full + Day 1 + Day 2... + Day N)	Higher (If 1 intermediate incremental is corrupt, chain breaks)
Full + Daily Differential	Moderate	Moderate (100GB + 10+20+30... = 310GB)	Simple (Requires Full + ONLY the latest Differential)	Low (Only 2 backup sets needed)

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Conclusions & Learning Outcome

A comprehensive backup and disaster recovery plan was implemented. The 3-2-1 backup strategy was evaluated across Full, Incremental, and Differential backup methodologies. Hands-on configuration of System Restore Points, File History automated versioning, and command-line synchronization (`robocopy`) verified successful file restoration after simulated accidental deletion.

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Oral Exam & Viva Questions with Answers

Essential questions asked by external examiners and lab evaluators (Accordion UI)

Answer:

The 3-2-1 rule dictates having at least 3 copies of your data (1 primary copy and 2 backup copies), stored on 2 different physical media types (e.g. internal SSD, external HDD, tape, or NAS), with at least 1 copy kept offsite or in cloud storage to protect against physical disasters like fire, flood, or theft.