Error
Error Code: ORA-28428

Oracle Error ORA-28428: RAC Datafile Encryption

📦 Oracle Database
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Description

The ORA-28428 error occurs when attempting to encrypt or decrypt a data file in mount mode while another Oracle RAC instance has the database open. This typically happens in a Real Application Clusters (RAC) environment during administrative tasks.
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Error Message

ORA-28428: cannot encrypt or decrypt a data file in mount mode when the database is open elsewhere
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Known Causes

3 known causes
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RAC Instance Active
Another instance in the Oracle RAC cluster currently has the database open, preventing exclusive access for encryption/decryption.
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Incorrect Database State
The database is not in the correct state (mount mode and exclusive access) for performing encryption or decryption operations.
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Lock Contention
A lock contention issue exists between RAC instances, preventing the current instance from obtaining the necessary exclusive lock.
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Solutions

Coming Soon

Detailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:

General Troubleshooting Tips

  • Check the error message carefully for specific details
  • Review recent changes that might have caused the error
  • Search for the exact error code in the official documentation
  • Check log files for additional context
  • Try restarting the application or service

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