恢复INACTIVE日志组有两种情况
- 一种是INACTIVE日志组的其中一个成员损坏
- 一种是INACTIVE日志组所有日志成员都损坏
- 使用rman恢复INACTIVE日志组的其中一个成员损坏
- 1、查看当前状态：
sys@TEST1107> select * from v$logfile;
GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
3 ONLINE /u01/app/oracle/oradata/test1107/redo03.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01a.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02a.log NO
3 ONLINE /u01/app/oracle/oradata/test1107/redo03a.log NO
6 rows selected.
sys@TEST1107> alter system switch logfile;
System altered.
sys@TEST1107> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIME NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ------------------ ------------ ------------------
1 1 9 52428800 512 2 YES INACTIVE 1089973 06-NOV-13 1089979 06-NOV-13
2 1 11 52428800 512 2 NO CURRENT 1090048 06-NOV-13 2.8147E+14
3 1 10 52428800 512 2 YES ACTIVE 1089979 06-NOV-13 1090048 06-NOV-13
- 2、OS删除一个INACTIVE 状态的日志
[oracle@rtest ~]$ rm /u01/app/oracle/oradata/test1107/redo01.log
- 3、模拟断电，然后再启动实例，可以正常打开
sys@TEST1107> shutdown abort
ORACLE instance shut down.
sys@TEST1107> startup
ORACLE instance started.
Total System Global Area 1269366784 bytes
Fixed Size 2227984 bytes
Variable Size 805306608 bytes
Database Buffers 452984832 bytes
Redo Buffers 8847360 bytes
Database mounted.
Database opened.
- 4、查看日志组成员状态，发现刚删除那个日志组成员的状态为INVALID
sys@TEST1107> select * from v$logfile;
GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
3 ONLINE /u01/app/oracle/oradata/test1107/redo03.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02.log NO
1 INVALID ONLINE /u01/app/oracle/oradata/test1107/redo01.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01a.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02a.log NO
3 ONLINE /u01/app/oracle/oradata/test1107/redo03a.log NO
6 rows selected.
- 5、再来查看一下alert日志
Wed Nov 06 10:20:48 2013
Errors in file /u01/app/oracle/diag/rdbms/test1107/test1107/trace/test1107_m000_18904.trc:
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: '/u01/app/oracle/oradata/test1107/redo01.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Completed crash recovery at
Thread 1: logseq 12, block 370, scn 1131445
140 data blocks read, 140 data blocks written, 183 redo k-bytes read
Errors in file /u01/app/oracle/diag/rdbms/test1107/test1107/trace/test1107_ora_18888.trc:
ORA-00313: open failed for members of log group 1 of thread 1
- 6、删除再添加损坏的日志组成员
sys@TEST1107> alter database drop logfile member '/u01/app/oracle/oradata/test1107/redo01.log';
Database altered.
sys@TEST1107> alter database add logfile member '/u01/app/oracle/oradata/test1107/redo01.log' to group 1;
Database altered.
- 7、查看日志成员状态，发现其状态依然是INVALID
sys@TEST1107> select * from v$logfile;
GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
3 ONLINE /u01/app/oracle/oradata/test1107/redo03.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02.log NO
1 INVALID ONLINE /u01/app/oracle/oradata/test1107/redo01.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01a.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02a.log NO
3 ONLINE /u01/app/oracle/oradata/test1107/redo03a.log NO
6 rows selected.
- 8、切换日志，使其强制使用
sys@TEST1107> alter system switch logfile;
System altered.
sys@TEST1107> alter system switch logfile;
System altered.
sys@TEST1107> alter system switch logfile;
System altered.
- 9、再来查看日志成员状态，为正常状态
sys@TEST1107> select * from v$logfile;
GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
3 ONLINE /u01/app/oracle/oradata/test1107/redo03.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01a.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02a.log NO
3 ONLINE /u01/app/oracle/oradata/test1107/redo03a.log NO
6 rows selected.
- 使用rman恢复INACTIVE日志组的所有成员损坏
1、首先查看各个日志组的状态
sys@TEST1107> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIME NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ------------------ ------------ ------------------
1 1 18 52428800 512 2 YES INACTIVE 1132950 06-NOV-13 1132957 06-NOV-13
2 1 20 52428800 512 2 NO CURRENT 1132964 06-NOV-13 2.8147E+14
3 1 19 52428800 512 2 YES INACTIVE 1132957 06-NOV-13 1132964 06-NOV-13
sys@TEST1107> select * from v$logfile;
GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
3 ONLINE /u01/app/oracle/oradata/test1107/redo03.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01a.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02a.log NO
3 ONLINE /u01/app/oracle/oradata/test1107/redo03a.log NO
6 rows selected.
- 2、OS删除当前状态为INACTIVE的日志组成员
[oracle@rtest ~]$ rm /u01/app/oracle/oradata/test1107/redo03a.log
[oracle@rtest ~]$ rm /u01/app/oracle/oradata/test1107/redo03.log
- 3、模拟断电，然后启动实例，报错
sys@TEST1107> shutdown abort
ORACLE instance shut down.
sys@TEST1107> startup
ORACLE instance started.
Total System Global Area 1269366784 bytes
Fixed Size 2227984 bytes
Variable Size 805306608 bytes
Database Buffers 452984832 bytes
Redo Buffers 8847360 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 20768
Session ID: 96 Serial number: 3
- 4、查看alert日志
Wed Nov 06 10:30:55 2013
ARC3 started with pid=23, OS id=20926
ARC1: Archival started
ARC2: Archival started
ARC1: Becoming the 'no FAL' ARCH
ARC1: Becoming the 'no SRL' ARCH
ARC2: Becoming the heartbeat ARCH
Errors in file /u01/app/oracle/diag/rdbms/test1107/test1107/trace/test1107_lgwr_20878.trc:
ORA-00313: open failed for members of log group 3 of thread 1
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/test1107/redo03a.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/test1107/redo03.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Errors in file /u01/app/oracle/diag/rdbms/test1107/test1107/trace/test1107_lgwr_20878.trc:
ORA-00313: open failed for members of log group 3 of thread 1
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/test1107/redo03a.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/test1107/redo03.log'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
Errors in file /u01/app/oracle/diag/rdbms/test1107/test1107/trace/test1107_ora_20895.trc:
ORA-00313: open failed for members of log group 1 of thread
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/test1107/redo03.log'
ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/test1107/redo03a.log'
USER (ospid: 20895): terminating the instance due to error 313
System state dump requested by (instance=1, osid=20895), summary=[abnormal instance termination].
System State dumped to trace file /u01/app/oracle/diag/rdbms/test1107/test1107/trace/test1107_diag_20868.trc
Dumping diagnostic data in directory=[cdmp_20131106103056], requested by (instance=1, osid=20895), summary=[abnormal instance termination].
Instance terminated by USER, pid = 20895
- 5、关闭数据库，重新启动到mount状态
dle> shutdown abort
ORACLE instance shut down.
idle> startup mount
ORACLE instance started.
Total System Global Area 1269366784 bytes
Fixed Size 2227984 bytes
Variable Size 805306608 bytes
Database Buffers 452984832 bytes
Redo Buffers 8847360 bytes
Database mounted.
- 6、删除整个INACTIVE的日志组，然后查看目前的日志组极其成员的状态
idle> alter database drop logfile group 3;
Database altered.
idle> set linesize 200
idle> col member for a50
idle> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIME NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ------------------ ------------ ------------------
2 1 20 52428800 512 2 NO CURRENT 1132964 06-NOV-13 2.8147E+14
1 1 18 52428800 512 2 YES INACTIVE 1132950 06-NOV-13 1132957 06-NOV-13
idle> select * from v$logfile;
GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
2 ONLINE /u01/app/oracle/oradata/test1107/redo02.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01a.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02a.log NO
- 7、重新创建日志组3
idle> alter database add logfile group 3 ('/u01/app/oracle/oradata/test1107/redo03.log','/u01/app/oracle/oradata/test1107/redo03a.log') size 52428800;
Database altered.
- 8、然后打开数据库，查询日志组极其成员
idle> alter database open;
Database altered.
idle> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIME NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ------------------ ------------ ------------------
1 1 18 52428800 512 2 YES INACTIVE 1132950 06-NOV-13 1132957 06-NOV-13
2 1 20 52428800 512 2 YES INACTIVE 1132964 06-NOV-13 1153041 06-NOV-13
3 1 21 52428800 512 2 NO CURRENT 1153041 06-NOV-13 2.8147E+14
idle> select * from v$logfile;
GROUP# STATUS TYPE MEMBER IS_
---------- ------- ------- -------------------------------------------------- ---
3 ONLINE /u01/app/oracle/oradata/test1107/redo03.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01.log NO
1 ONLINE /u01/app/oracle/oradata/test1107/redo01a.log NO
2 ONLINE /u01/app/oracle/oradata/test1107/redo02a.log NO
3 ONLINE /u01/app/oracle/oradata/test1107/redo03a.log NO
6 rows selected.
idle> conn /as sysdba
Connected.
sys@TEST1107>