ORA-00348: single-process redo failure. Must abort instance
Cause: A failure occurred during a critical portion of the log code during single process operation. This error does not occur during normal multi-process operation.
Action: Shutdown abort and warmstart the database.
ORA-00347: log string of thread string, expected block size string doesn’t match string
Cause: On header read the blocksize indicated in the control file did not match the blocksize contained in the log file.
Action: Restore correct file or reset logs.
ORA-00346: log member marked as STALE
Cause: A log file member no longer is complete.
Action: Correct the underlying problem by referring to the other error messages found with this one.
ORA-00345: redo log write error block string count string
Cause: An IO error has occurred while writing the log
Action: Correct the cause of the error, and then restart the system. If the log is lost, apply media/incomplete recovery.
ORA-00344: unable to re-create online log ‘string’
Cause: An I/O failure occurred when attempting to re-create an online as part of either ALTER DATABASE OPEN RESETLOGS or ALTER DATABASE CLEAR LOGFILE command.
Action: Correct the file/device as indicated by accompanying errors
ORA-00343: too many errors, log member closed
Cause: The maximum number of errors on this log member has been exceeded.
Action: Correct the underlying problem by referring to the other error messages found with this one.
ORA-00342: archived log does not have expected resetlogs SCN string
Cause: Recovery was given a log that does not belong to current incarnation or one of the parent incarnation. There should be another log that contains the correct redo.
Action: Supply the correct log file.
ORA-00341: log string of thread string, wrong log # string in header
Cause: The internal information in an online log file does not match the control file.
Action: Restore correct file or reset logs.
ORA-00340: IO error processing online log string of thread string
Cause: An IO error occurred on the named online log.
Action: Restore accessibility to file, or restore file from backup.
ORA-00339: archived log does not contain any redo
Cause: The archived log is not the correct log. It is a copy of a log file that has never been used for redo generation, or was an online log being prepared to be the current log.
Action: Restore the correct log file.