Understanding the Error

When MySQL displays the error "InnoDB: Database page corruption on disk or a failed file read of page", it indicates that InnoDB has detected data corruption in one or more pages of your tablespace files. 

[ERROR] InnoDB: Database page corruption on disk or a failed file read of page
[page id: space=5, page number=127].
[ERROR] InnoDB: You may have to recover from a backup.

Common Causes

  • Hardware failure - Disk errors, bad sectors, or failing storage
  • Power failure - Unexpected shutdown during write operations
  • Software bugs - Rare MySQL or filesystem bugs
  • Memory issues - Faulty RAM causing data corruption
  • File system corruption - Underlying filesystem problems

Recovery Options

Option 1: innodb_force_recovery

Try starting MySQL with increasing force_recovery levels:

[mysqld]
innodb_force_recovery = 1

Increase the value (1-6) if MySQL still won't start.

Option 2: Use DBRECOVER for MySQL

When force_recovery fails or you can't access specific tables, DBRECOVER can extract data directly from the corrupted .ibd files:

  1. Launch DBRECOVER for MySQL
  2. Click "Open IBD File" and select the corrupted file
  3. DBRECOVER will analyze the file and show recoverable data
  4. Preview the data to verify recovery
  5. Export to SQL or CSV format
⚠️ Important

Always create a backup of your corrupted files before attempting any recovery. Some recovery methods may modify the original files.

Prevention

  • Use reliable hardware with ECC memory
  • Implement UPS for power protection
  • Enable MySQL's double-write buffer
  • Regular backups with tested restoration
  • Monitor disk health with SMART tools