Oracle RMAN 使用RMAN恢复INACTIVE状态的日志

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>