Oracle数据库的非归档模式迁移到归档模式

先观察当前的状态:

[root@o_target ~]# su - oracle    
[oracle@o_target ~]$ sqlplus / as sysdba    
    
SQL*Plus: Release 11.2.0.1.0 Production on Wed Mar 19 12:38:24 2014    
    
Copyright (c) 1982, 2009, Oracle.  All rights reserved.    
    
Connected to an idle instance.    
    
SQL> startup;    
ORACLE instance started.    
    
Total System Global Area 1023004672 bytes    
Fixed Size                  2219752 bytes    
Variable Size             624951576 bytes    
Database Buffers          390070272 bytes    
Redo Buffers                5763072 bytes    
Database mounted.    
Database opened.    
SQL> archive log list;    
Database log mode              No Archive Mode    
Automatic archival             Disabled    
Archive destination            USE_DB_RECOVERY_FILE_DEST    
Oldest online log sequence     4    
Current log sequence           6 

SQL>

发现是没有在 Archive模式下。

 

进行转换,发现必须对数据库在mount状态下进行操作。

   
SQL> alter database archivelog;    
alter database archivelog    
*    
ERROR at line 1:    
ORA-01126: database must be mounted in this instance and not open in any    
instance    

然后,进入mount状态,进行转换:

SQL> shutdown immediate;    
Database closed.    
Database dismounted.    
ORACLE instance shut down.    
SQL> startup mount;           
ORACLE instance started.    
    
Total System Global Area 1023004672 bytes    
Fixed Size                  2219752 bytes    
Variable Size             624951576 bytes    
Database Buffers          390070272 bytes    
Redo Buffers                5763072 bytes    
Database mounted.    
SQL> alter database archivelog;    
    
Database altered.    
    
SQL> archive log list;    
Database log mode              Archive Mode    
Automatic archival             Enabled    
Archive destination            USE_DB_RECOVERY_FILE_DEST    
Oldest online log sequence     4    
Next log sequence to archive   6    
Current log sequence           6    
SQL>      

发现现在缺省使用的路径为 DB_RECOVERY_FILE_DEST,此路径是和Oracle的Flash_back_recovery 路径混杂在一起的,不太妥当。

参见:

http://jinyumantang110.blog.163.com/blog/static/5457915620107994131968/

http://anuj-singh.blogspot.jp/2011/10/oracle-archive-log-on.html

其提到:never use this area for archive log file , system will hang after destination full

 

先观察实际路径设置:

SQL> show parameter DB_RECOVERY_FILE_DEST;    
    
NAME                                 TYPE        VALUE    
------------------------------------ ----------- ------------------------------    
db_recovery_file_dest                string      /u01/app/oracle/flash_recovery    
                                                 _area    
db_recovery_file_dest_size           big integer 3882M    

 

尝试更改路径:

SQL> alter system set log_archive_dest = ‘/u01/app/arch‘ scope=both;   
alter system set log_archive_dest = ‘/u01/app/arch‘ scope=both   
*   
ERROR at line 1:   
ORA-02097: parameter cannot be modified because specified value is invalid   
ORA-16018: cannot use LOG_ARCHIVE_DEST with LOG_ARCHIVE_DEST_n or   
DB_RECOVERY_FILE_DEST   
   

需要把 USE_DB_RECOVERY_FILE_DEST变成空值:

SQL> alter system set DB_RECOVERY_FILE_DEST=‘‘;   
   
System altered.   
   
SQL> alter system set log_archive_dest =    
  2  ‘/u01/app/arch‘ scope=both;   
   
System altered.   
   
SQL>    
   
   
SQL> archive log list;   
Database log mode              Archive Mode   
Automatic archival             Enabled   
Archive destination            /u01/app/arch   
Oldest online log sequence     4   
Next log sequence to archive   6   
Current log sequence           6   
SQL>

 

看archive log 目录是否可以自动生成:

SQL> alter system switch logfile;   
alter system switch logfile   
*   
ERROR at line 1:   
ORA-01109: database not open   
   
   
SQL>    
   
   
   
   
SQL> alter database open;   
   
Database altered.   
   
SQL> alter system switch logfile;   
   
System altered.   
   
SQL>    
   
   
   
   
SQL> shutdown immediate;   
Database closed.   
Database dismounted.   
ORACLE instance shut down.   
SQL>    
   
   
   
   
SQL> shutdown immediate;   
Database closed.   
Database dismounted.   
ORACLE instance shut down.   
SQL>    
SQL>    
SQL> startup;   
ORACLE instance started.   
   
Total System Global Area 1023004672 bytes   
Fixed Size                  2219752 bytes   
Variable Size             624951576 bytes   
Database Buffers          390070272 bytes   
Redo Buffers                5763072 bytes   
Database mounted.   
Database opened.   
SQL> archive log list;   
Database log mode              Archive Mode   
Automatic archival             Enabled   
Archive destination            /u01/app/arch   
Oldest online log sequence     5   
Next log sequence to archive   7   
Current log sequence           7   
SQL> !ls -lrt /u10/app/   
ls: /u10/app/: No such file or directory   
   
SQL> !ls -lrt /u01/app   
total 836   
drwxrwx--- 5 oracle oinstall   4096 Mar 13 09:18 oraInventory   
drwxr-xr-x 9 oracle oinstall   4096 Mar 13 09:24 oracle   
-rw-r----- 1 oracle oinstall 840192 Mar 19 14:07 arch1_6_842088414.dbf   
   
SQL> !ls -lrt /u01/app/arch   
ls: /u01/app/arch: No such file or directory   
   
SQL>    
   
必须手动设置:

SQL> !ls -lrt /u01/app   
total 836   
drwxrwx--- 5 oracle oinstall   4096 Mar 13 09:18 oraInventory   
drwxr-xr-x 9 oracle oinstall   4096 Mar 13 09:24 oracle   
-rw-r----- 1 oracle oinstall 840192 Mar 19 14:07 arch1_6_842088414.dbf   
   
SQL> !ls -lrt /u01/app/arch   
ls: /u01/app/arch: No such file or directory   
   
SQL> !mkdir -p /u01/app/arch            
   
SQL> !ls -lrt /u01/app/arch   
total 0   
   
SQL> !ls -lrt /u01/app   
total 840   
drwxrwx--- 5 oracle oinstall   4096 Mar 13 09:18 oraInventory   
drwxr-xr-x 9 oracle oinstall   4096 Mar 13 09:24 oracle   
-rw-r----- 1 oracle oinstall 840192 Mar 19 14:07 arch1_6_842088414.dbf   
drwxr-xr-x 2 oracle oinstall   4096 Mar 19 14:11 arch   
   
SQL>

SQL> alter system set log_archive_dest = ‘/u01/app/arch‘ scope=both;  
alter system set log_archive_dest = ‘/u01/app/arch‘ scope=both    
*                
ERROR at line 1:              
ORA-02097: parameter cannot be modified because specified value is invalid
ORA-16018: cannot use LOG_ARCHIVE_DEST with LOG_ARCHIVE_DEST_n or  
DB_RECOVERY_FILE_DEST            
                 

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Oracle数据库的非归档模式迁移到归档模式

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