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Tag Archives: _CORRUPTED_ROLLBACK_SEGMENTS
缺少归档导致不完整恢复
简单介绍一次客户由于缺少归档造成数据丢失的案例。 分享一个案例:客户的一个测试数据库要迁移到另一台服务器上,客户DBA在将数据库备份到带库后,对原数据库服务器进行了格式化。 当DBA在目标服务器上进行数据库的恢复时发现了问题。数据库的备份虽然成功完成,但是随后的归档日志的备份由于报错失败了。现在只有一个全库的热备份,而没有任何归档日志的备份。目前已经不是丢失数据的问题了,而是缺少一致性的备份,数据库根本无法打开。 当然这个案例的恢复对于我们来说不算什么困难的事情,全库恢复后,直接RECOVER UNTIL CANCEL,尝试直接OPEN RESETLOGS,会出现错误: SQL> conn / AS sysdba Connected. SQL> ALTER DATABASE OPEN READ ONLY; ALTER DATABASE OPEN READ ONLY * ERROR at line 1: ORA-16004: backup DATABASE requires recovery ORA-01152: file 1 was NOT restored … Continue reading
Posted in ORACLE
Tagged 4137, EVENTS 10153, ORA-600, _allow_resetlogs_corruption, _CORRUPTED_ROLLBACK_SEGMENTS
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