The Mechanism
RAID 1 protects against hardware failures, but it cannot protect against logical data corruption. Because the controller mirrors everything in real-time, any command executed on Drive A is instantly copied to Drive B.
- Malware & Ransomware: If ransomware encrypts the file system, both drives are encrypted simultaneously.
- Operating System Crashes: A sudden blue screen or kernel panic during a critical system update can corrupt the file allocation table on both drives at once.
The Impact on RAID 1
The array remains healthy from a hardware perspective, but the data inside it becomes completely corrupted or unusable.
