又一次REDO损坏恢复

现象描述

上午：9：52在切换归档时掉电：   Thread 1 advanced to log sequence 14574 (LGWR switch)   Current log# 3 seq#   14574 mem# 0: /home/oracle/app/oracle/oradata/orcl/redo03.log Sun Sep 22 09:52:20 2019 Archived Log entry 14327 added for thread 1 sequence 14573 ID   0x5b557622 dest 1: 在下午启动时报错： ALTER DATABASE OPEN Errors in file /home/oracle/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_ora_55829.trc: ORA-01113: file 1 needs media recovery ORA-01110: data file 1:   '/home/oracle/app/oracle/oradata/orcl/system01.dbf' ORA-1113 signalled during: ALTER DATABASE OPEN... Sun Sep 22 16:53:32 2019 Errors in file /home/oracle/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_m000_55832.trc: ORA-00314: log 1 of thread 1, expected sequence#   14575 doesn't match 14572 ORA-00312: online log 1 thread 1:   '/home/oracle/app/oracle/oradata/orcl/redo01.log' Errors in file /home/oracle/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_m000_55832.trc: ORA-00314: log 2 of thread 1, expected sequence#   14576 doesn't match 14573 ORA-00312: online log 2 thread 1:   '/home/oracle/app/oracle/oradata/orcl/redo02.log' Errors in file /home/oracle/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_m000_55832.trc: ORA-00322: log 3 of thread 1 is not current copy ORA-00312: online log 3 thread 1:   '/home/oracle/app/oracle/oradata/orcl/redo03.log'

分析过程及处理

一 检查alert_sid.log日志，发现已经进行过异常恢复 二 关数据库，备份所有数据文件，REDO，CONTROL到另一个目录 三 检查文件坏块 dbv   file=/home/oracle/app/oracle/oradata/orcl/sysaux01.dbf blocksize=8192 dbv   file=/home/oracle/app/oracle/oradata/orcl/system01.dbf blocksize=8192 dbv   file=/home/oracle/app/oracle/oradata/orcl/undotbs01.dbf blocksize=8192 ……………………………. dbv file=/home/oracle/app/oracle/oradata/orcl/TIP_AREA_CONTROL_temp.DBF   blocksize=8192 四 检查文件头和文件SCN号 select file#,checkpoint_change# from v$datafile_header; FILE# CHECKPOINT_CHANGE# ---------- ------------------ 1 365579306 2 365579306 3 365579306 4 365579306 5 365579306 6 365579306 7 365579306 8 365579306 9 365579306 10 365579306 11 365579306 12 365579306   select file#,checkpoint_change# from v$datafile;   FILE# CHECKPOINT_CHANGE# ---------- ------------------ 1 365579302 2 365579302 3 365579302 4 365579302 5 365579302 6 365579302 7 365579302 8 365579302 9 365579302 10 365579302 11 365579302 12 365579302 五 尝试非常规手段恢复 alter system set   control_files='/home/oracle/app/oracle/oradata/orcl/control01.ctl'   scope=spfile; alter system set undo_management =manual scope=spfile; alter system set undo_tablespace =system   scope=spfile; alter system   set "_allow_resetlogs_corruption"=TRUE scope=spfile; RECOVER   DATABASE until cancel; alter database open resetlogs 报错: Mon Sep 23 00:31:08 2019 Media Recovery failed with error 16433 Recovery Slave PR00 previously exited with exception   283 ORA-283 signalled during: ALTER DATABASE RECOVER   DATABASE until cancel ... Incident 2693065 created, dump file:   /home/oracle/app/oracle/diag/rdbms/orcl/orcl/incident/incdir_2693065/orcl_ora_37627_i2693065.trc ORA-00600: internal error code, arguments: [2662], [0],   [365579314], [0], [365598509], [12583040], [], [], [], [], [], [] 六 建控制文件 CREATE CONTROLFILE SET DATABASE "orcl"   RESETLOGS FORCE LOGGING NOARCHIVELOG MAXLOGFILES 5 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 1 MAXLOGHISTORY 226 LOGFILE GROUP 1   '/home/oracle/app/oracle/oradata/orcl/redo01.log' SIZE 50M, GROUP 2   '/home/oracle/app/oracle/oradata/orcl/redo02.log' SIZE 50M, GROUP 3   '/home/oracle/app/oracle/oradata/orcl/redo03.log' size 50M DATAFILE '/home/oracle/app/oracle/oradata/orcl/system01.dbf', '/home/oracle/app/oracle/oradata/orcl/users01.dbf', '/home/oracle/app/oracle/oradata/orcl/undotbs01.dbf', '/home/oracle/app/oracle/oradata/orcl/TIP_TIP_PROJECT.DBF', '/home/oracle/app/oracle/oradata/orcl/TIP_AREA_CONTROL.DBF', '/home/oracle/app/oracle/oradata/orcl/sysaux01.dbf', '/home/oracle/app/oracle/oradata/orcl/OA_HY.DBF', '/home/oracle/app/oracle/oradata/orcl/yzb_data.dbf', '/home/oracle/app/oracle/oradata/orcl/ogg01.dbf', '/home/oracle/app/oracle/oradata/orcl/GUARDGATEWAY.DBF', '/home/oracle/app/oracle/oradata/tipoa3_data.DBF', '/home/oracle/app/oracle/oradata/oa3.DBF' CHARACTER SET ZHS16GBK ; 七 调整 SCN SQL> oradebug poke   0x06001AE70 4 365998509 BEFORE: [06001AE70, ) = 00000000 AFTER: [06001AE70, 06001AE74) = 15D0B1AD oradebug poke 0x06001AE74 4 365998509 SQL> oradebug dumpvar sga kcsgscn_ kcslf kcsgscn_ [06001AE70, 06001AEA0) = 15D0B1AD 15D0B1AD 00000000   00000000 00000000 00000000 00000000 00000000 00000000 00000000 6001AX50   00000000 oradebug poke 0x06001AE70 8 366998509 alter database open resetlogs;   至此打开成功