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1、手工切归档时出错；
2、查看告警信息；
3、转储/disk2下的控制文件；
4、启库，切归档；
5、手工执行0级全备。
|
时间 |
目的 |
操作 |
|
09:50 |
正常巡检，开启告警日志， 检查数据库时间、状态 |
#tail -f /u01/app/oracle/admin/metro/bdump/alert_metro.log SQL> SELECT sysdate from dual; SYSDATE ----------------- 21-05-14 09:50:24 SQL> select status from v$instance; STATUS ------------ OPEN |
|
09:51 |
发现告警日志中 一条cannot提示信息 |
Wed May 21 09:47:15 2014 Thread 1 cannot allocate new log, sequence 104 Checkpoint not complete Current log# 3 seq# 103 mem# 0: /u01/app/oracle/oradata/metro/redo03.log Current log# 3 seq# 103 mem# 1: /disk1/metro/redofile/redo03a.log Thread 1 advanced to log sequence 104 Current log# 1 seq# 104 mem# 0: /u01/app/oracle/oradata/metro/redo01.log Current log# 1 seq# 104 mem# 1: /disk1/metro/redofile/redo01a.log |
|
09:53 |
发现告警日志中 连续出现ORA-00202告警信息 |
Wed May 21 09:53:25 2014 Hex dump of (file 0, block 1) in trace file /u01/app/oracle/admin/metro/bdump/metro_arc0_385212.trc Corrupt block relative dba: 0x00000001 (file 0, block 1) Completely zero block found during control file header read Wed May 21 09:53:25 2014 Errors in file /u01/app/oracle/admin/metro/bdump/metro_arc0_385212.trc: ORA-00202: control file: ‘/disk2/metro/control_file/control03.ctl‘ Wed May 21 09:53:26 2014 Errors in file /u01/app/oracle/admin/metro/bdump/metro_arc0_385212.trc: ORA-00227: corrupt block detected in control file: (block 1, # blocks 1) ORA-00202: control file: ‘/disk2/metro/control_file/control03.ctl‘ |
|
10:10 |
到数据库下进行手工归档， 报错并断开连接 |
SQL> alter system switch logfile; alter system switch logfile * ERROR at line 1: ORA-03135: connection lost contact |
|
10:12 |
尝试启库，失败，报错 |
SQL> startup ORACLE instance started. Total System Global Area 612368384 bytes Fixed Size 2022800 bytes Variable Size 226493040 bytes Database Buffers 377487360 bytes Redo Buffers 6365184 bytes ORA-00205: error in identifying control file, check alert log for more info |
|
10:13 |
根据启库时提示信息 及告警日志信息， 初判控制文件存在问题 |
启库时提示： ORA-00205: error in identifying control file, check alert log for more info 告警日志中提示： ORA-00202: control file: ‘/disk2/metro/control_file/control03.ctl‘ |
|
10:16 |
根据提示转储disk2下控制文件 |
[[email protected]]$cd /disk2/metro/control_file [[email protected]]$ls control03.ctl [[email protected]]$mv control03.ctl control03.ctl.bak [[email protected]]$cd /disk1/metro/control_file [[email protected]]$ls control02.ctl [[email protected]]$cp control02.ctl /disk2/metro/control_file/control03.ctl |
|
10:19 |
启库，成功 |
SQL> startup; ORACLE instance started. Total System Global Area 612368384 bytes Fixed Size 2022800 bytes Variable Size 226493040 bytes Database Buffers 377487360 bytes Redo Buffers 6365184 bytes Database mounted. Database opened. |
|
10:20 |
删除有问题的控制文件 |
[[email protected]]$ls control03.ctl control03.ctl.bak [[email protected]]$rm control03.ctl.bak [[email protected]]$ls control03.ctl |
|
10:22 |
0级全备 |
[[email protected]]$cd /home/oracle/ [[email protected]]$ls ctl.sh scripts smit.log smit.script smit.transaction [[email protected]]$cd scripts [[email protected]]$ls bin log tmp [[email protected]]$cd bin [[email protected]]$ls rmanlevel0.sh rmanlevel0.sh.bak rmanlevel1.sh rmanlevel1.sh.bak [[email protected]]$sh rmanlevel0.sh |
|
10:28 |
完成全备 |
|
|
10:29 |
切归档 |
SQL> alter system archive log current; System altered. |
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现场故障 案例：控制文件损坏