Warning. Log sequence in archive filename wrapped to fix length as indicated by % S in LOG_ARCHIVE_F, archivefilename

Warning. Log sequence in archive filename wrapped to fix length as indicated by % S in LOG_ARCHIVE_F, archivefilename

The following warning message was found during the database check recently:

Thu Apr 02 10:34:39 2015  Current log# 1 seq# 235103 mem# 0: D:\ORADATA\ORCL\REDO01.LOGThu Apr 02 10:34:40 2015ARC1: Evaluating archive   log 3 thread 1 sequence 235102Thu Apr 02 10:34:40 2015ARC1: Warning.  Log sequence in archive filename wrappedto fix length as indicated by %S in LOG_ARCHIVE_FORMAT.Old log archive with same name might be overwritten.Committing creation of archivelog 'D:\ARCHIVELOG\ARC35102_0749482202.001'

After query, this is an oracle bug. The default value of LOG_ARCHIVE_FORMAT in the database is ARC % S _ % R. % T. % S is a serial number. Only five digits are supported (that is, the maximum value is 99999). When this value is exceeded, only five digits are displayed, therefore, alert prompts that files with the same name may be overwritten,
The current log_archive_format settings of the system:

SQL> show parameter log_archive_formatNAME                                 TYPE        VALUE------------------------------------ ----------- -----------log_archive_format                   string      ARC%S_%R.%T

The solution provided by Oracle is to change % S in log_archive_format to % s.
To modify this parameter, restart the database.

alter system set LOG_ARCHIVE_FORMAT='ARC%s_%R.%T' scope=spfile；

Restart the database.