归档模式下丢失未归档的redolog处理
数据库版本：ora10R2
os：linux
SQL> select * From v$version;
BANNER
----------------------------------------------------------------
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bi
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
TNS for Linux: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
确认当前日志组状态：
SQL> select * From v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
1 1 78 52428800 1 NO INACTIVE
5609578 21-OCT-13
4 1 80 104857600 1 NO INACTIVE
5609593 21-OCT-13
3 1 81 52428800 1 NO CURRENT
5609595 21-OCT-13
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
2 1 79 52428800 1 NO INACTIVE
5609581 21-OCT-13
---手工删除相应的redolog
rm -rf /oracle/oradata/lixora/redo01.log
SQL> alter database clear logfile group 1;
alter database clear logfile group 1
*
ERROR at line 1:
ORA-00350: log 1 of instance lixora (thread 1) needs to be archived
ORA-00312: online log 1 thread 1: '/oracle/oradata/lixora/redo01.log'
SQL> alter database clear unarchived logfile group 1;
Database altered.
-----打开数据库
SQL> alter database open;
Database altered.
-----再次确认redolog状态
SQL> select * From v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
1 1 82 52428800 1 NO CURRENT
5629603 21-OCT-13
2 1 79 52428800 1 YES INACTIVE
5609581 21-OCT-13
3 1 81 52428800 1 YES INACTIVE
5609595 21-OCT-13
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
4 1 80 104857600 1 YES INACTIVE
5609593 21-OCT-13
----手工切换几次
SQL> alter system switch logfile;
System altered.
SQL> /
System altered.
SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
1 1 82 52428800 1 YES ACTIVE
5629603 21-OCT-13
2 1 83 52428800 1 YES ACTIVE
5630462 21-OCT-13
3 1 81 52428800 1 YES INACTIVE
5609595 21-OCT-13
GROUP# THREAD# SEQUENCE# BYTES MEMBERS ARC STATUS
---------- ---------- ---------- ---------- ---------- --- ----------------
FIRST_CHANGE# FIRST_TIM
------------- ---------
4 1 84 104857600 1 NO CURRENT
5630464 21-OCT-13
