非当前联机日志文件故障恢复 1.启动数据库时遇到ORA-00313，ORA-00312错误。 ORA-00313: open failed for members of log group
非当前联机日志文件故障恢复
1.启动数据库时遇到ORA-00313，ORA-00312错误。
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: ‘/home/Oracle/oradata/s1/redo01.log’
2.查看v$log视图。
SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM
———- ———- ———- ———- ———- — —————- ————- ———
1 1 11 52428800 1 YES INACTIVE 489912 09-NOV-12
3 1 10 52428800 1 YES INACTIVE 488868 08-NOV-12
2 1 12 52428800 1 NO CURRENT 519028 11-NOV-12
3.用clear命令重建该日志文件
如果该日志文件已经归档则：
SQL> alter database clear logfile group 1;
Database altered.
如果该日志文件还没有归档则：
SQL> alter database clear unarchived logfile group 3;
Database altered.
4.打开数据库，重新备份数据库（建议clear，特别是clear unarchived后做一次全备份）
SQL> alter database open;
Database altered.
当前联机日志文件故障恢复
归档模式下，当前日志文件损坏有两种情况
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一、数据库正常关闭，日志文件中没有解决的事务要实例恢复，当前日志组的损坏可直接用户
alter database clear unarchived logfile group n来重建
二、日志文件中有活动事物，数据库需要介质恢复，有两种补救方法
a、在归档模式下，有可用备份
b、无可用备份，通过强制性恢复，但可能会导致数据库不一致
a.在归档模式下有可用备份（不完全恢复）
1.1.启动数据库时报错，并用v$log查看
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: ‘/home/oracle/oradata/s1/redo01.log’
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM
———- ———- ———- ———- ———- — —————- ————- ———
1 1 16 52428800 1 NO CURRENT 520744 11-NOV-12
2 1 15 52428800 1 YES ACTIVE 520712 11-NOV-12
3 1 14 52428800 1 YES INACTIVE 520705 11-NOV-12
2.试用clear恢复
SQL> alter database clear logfile group 1;
SQL> alter database clear unarchived logfile group 1;
alter database clear unarchived logfile group 1
*
ERROR at line 1:
ORA-01624: log 1 needed for crash recovery of instance s1 (thread 1)
ORA-00312: online log 1 thread 1: ‘/home/oracle/oradata/s1/redo01.log’
3.执行recover database until cancel先用户auto后用cancel，报错如下：
SQL> recover database until cancel;
ORA-00279: change 520744 generated at 11/11/2012 22:43:39 needed for thread 1
ORA-00289: suggestion : /archive1/1_16_798842981.dbf
ORA-00280: change 520744 for thread 1 is in sequence #16
Specify log: {=suggested | filename | AUTO | CANCEL}
auto
ORA-00308: cannot open archived log ‘/archive1/1_16_798842981.dbf’
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
ORA-00308: cannot open archived log ‘/archive1/1_16_798842981.dbf’
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: ‘/home/oracle/oradata/s1/system01.dbf’
SQL> recover database until cancel;
ORA-00279: change 520744 generated at 11/11/2012 22:43:39 needed for thread 1
ORA-00289: suggestion : /archive1/1_16_798842981.dbf
ORA-00280: change 520744 for thread 1 is in sequence #16
Specify log: {=suggested | filename | AUTO | CANCEL}
cancel
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: ‘/home/oracle/oradata/s1/system01.dbf’
ORA-01112: media recovery not started
4.在rman下restore database；
RMAN> restore database;
5.在rman下recover database：报错如下：
RMAN> recover database;
Starting recover at 11-NOV-12
using channel ORA_DISK_1
starting media recovery
media recovery failed
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 11/11/2012 22:54:15
ORA-00283: recovery session canceled due to errors
RMAN-11003: failure during parse/execution of SQL statement: alter database recover if needed
start
ORA-00283: recovery session canceled due to errors
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: ‘/home/oracle/oradata/s1/redo01.log’
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
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