rman恢復之丟失非當前聯機重做日誌文件（讀書筆記）

三思筆記

因爲稍微遇到點問題，所以記一下

因爲oracle運行過程中自動鎖定聯機重做日誌，所以手動刪除聯機重做日誌，下面記錄，丟失非當前聯機重做日誌文件的恢復方法

1，查看聯機重做日誌的狀態

[oracle@cindy ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Sun Aug 31 23:55:30 2014

Copyright (c) 1982, 2011, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> select group#,thread#,sequence#,members,archived,status from v$log;

    GROUP#    THREAD#  SEQUENCE#    MEMBERS ARC STATUS
---------- ---------- ---------- ---------- --- ----------------
         1          1          1          1 NO  CURRENT
         2          1          0          1 YES UNUSED
         3          1          0          1 YES UNUSED

SQL> select group#,member from v$logfile;

    GROUP#
----------
MEMBER
--------------------------------------------------------------------------------
         3
/u02/oradata/ora11g/redo03.log

         2
/u02/oradata/ora11g/redo02.log

         1
/u02/oradata/ora11g/redo01.log

可見group# 爲3的是非當前

2，shutdown immediate，然後手動刪除redo03

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

[oracle@cindy ~]$ cd /u02/oradata/ora11g
[oracle@cindy ora11g]$ ls
cindy01.dbf  control01.ctl  example01.dbf  redo01.log  redo02.log  redo03.log  sysaux01.dbf  system01.dbf  temp01.dbf  undotbs01.dbf  users01.dbf
[oracle@cindy ora11g]$ rm redo03.log

3，啓動數據庫，報錯

SQL> startup
ORACLE instance started.

Total System Global Area  417546240 bytes
Fixed Size                  2228944 bytes
Variable Size             322964784 bytes
Database Buffers           88080384 bytes
Redo Buffers                4272128 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 4134
Session ID: 1 Serial number: 5

此時報錯信息與書上不同，恕我是個菜鳥，也百度了，解決辦法很多，但是未找到我想要的，最後在朋友的提醒下，是啓動方式不對，恢復的時候不要用startup

故

4，shutdown abort

SQL> shutdown abort;
ORACLE instance shut down.

5，啓動到mount狀態

SQL> startup mount;
ORACLE instance started.

Total System Global Area  417546240 bytes
Fixed Size                  2228944 bytes
Variable Size             322964784 bytes
Database Buffers           88080384 bytes
Redo Buffers                4272128 bytes
Database mounted.

6，重建該組重做日誌

SQL> alter database clear logfile group 3;

Database altered.

7，打開數據庫

SQL> alter database open;

Database altered.