🛡️ RAID 1, also known as disk mirroring, is all about data protection and reliability. It duplicates the same data onto two or more drives, so if one fails, the other still has a complete copy.

🔁 How It Works

• Mirroring: Every piece of data written to one disk is simultaneously written to another.
• Redundancy: If one drive dies, the system can continue operating using the mirrored copy.

📈 Benefits

• High fault tolerance: Great for critical data—your files are safe even if a drive fails.
• Simple recovery: Just replace the failed drive and rebuild the mirror.
• Read performance boost: Some systems can read from both drives simultaneously.

⚠️ Drawbacks

• Storage efficiency: You only get half the total capacity (e.g., two 1TB drives = 1TB usable).
• Write performance: Slightly slower than RAID 0 due to dual writes.
• Cost: Requires double the number of drives for the same usable space.

🧪 Ideal Use Cases

• Financial systems
• Medical records
• Small business servers
• Home NAS setups for backups