How To Fix DB02102 - Redo log not mirrored

DB02102 - Overview

• Message type: E = Error

• Message class: DB02 - For Oracle Component of the Database Monitor

• Message number: 102

• Message text: Redo log not mirrored

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DB02102 - Redo log not mirrored ?

  The SAP error message DB02102, which indicates "Redo log not mirrored," typically arises in the context of database management, particularly with SAP systems that use databases like Oracle, DB2, or others. This error suggests that the redo log files, which are crucial for database recovery and integrity, are not being mirrored as expected. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  
  Configuration Issues: The database may not be configured to mirror redo logs. This can happen if the database was set up without mirroring or if the mirroring configuration was altered.
  Disk Space Issues: If the disk where the redo logs are stored is full or has insufficient space, the mirroring process may fail.
  File System Issues: Problems with the file system or permissions can prevent the database from writing to the mirrored location.
  Database Instance Issues: If the database instance is not running properly or if there are connectivity issues,