Oracle 11G RAC 修改归档模式

Oracle 11G R2  RAC修改归档模式

库建好以后默认是非归档模式，需要修改一下

推荐阅读：

测试第一种方法：

SQL> archive log list;

Database log mode              No Archive Mode

Automatic archival            Disabled

Archive destination            USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence    19

Current log sequence          20

SQL>

SQL> Select NAME, CREATED, LOG_MODE, CHECKPOINT_CHANGE#, ARCHIVE_CHANGE# from V$DATABASE;

NAME      CREATED  LOG_MODE    CHECKPOINT_CHANGE# ARCHIVE_CHANGE#

--------- --------- ------------ ------------------ ---------------

MOMORAC  04-JUN-13 NOARCHIVELOG            2709486        2583268

SQL>

SQL> conn / as sysdba

Connected.

SQL> archive log list;

Database log mode              No Archive Mode

Automatic archival            Disabled

Archive destination            USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence    20

Current log sequence          21

SQL> show parameter USE_DB_RECOVERY_FILE_DEST

SQL> show parameter DB_RECOVERY_FILE_DEST

NAME                                TYPE        VALUE

------------------------------------ ----------- ------------------------------

db_recovery_file_dest                string      +FRA

db_recovery_file_dest_size          big integer 5G

SQL>

SQL> show parameter LOG_ARCHIVE_START

NAME                                TYPE        VALUE

------------------------------------ ----------- ------------------------------

log_archive_start                    boolean    FALSE

SQL>

SQL> host srvctl stop database -d momorac

SQL> host srvctl status database -d momorac

Instance momo1 is not running on node node1

Instance momo2 is not running on node node2

Instance momo3 is not running on node node3

SQL> show user;

USER is "SYS"

SQL> startup mount exclusive

ORA-03135: connection lost contact

SQL> conn / as sysdba

Connected to an idle instance.

SQL>

SQL> startup mount exclusive

ORACLE instance started.

Total System Global Area  297119744 bytes

Fixed Size                  1344540 bytes

Variable Size            184552420 bytes

Database Buffers          104857600 bytes

Redo Buffers                6365184 bytes

Database mounted.

SQL> host srvctl status database -d momorac

Instance momo1 is running on node node1

Instance momo2 is not running on node node2

Instance momo3 is not running on node node3

SQL>

SQL> select OPEN_MODE from v$database;

OPEN_MODE

--------------------

MOUNTED

SQL>

SQL> conn / as sysdba

Connected to an idle instance.

SQL>

SQL> startup mount exclusive restrict;

ORACLE instance started.

Total System Global Area  297119744 bytes

Fixed Size                  1344540 bytes

Variable Size            184552420 bytes

Database Buffers          104857600 bytes

Redo Buffers                6365184 bytes

Database mounted.

SQL>

同时看日志 ：

ALTER SYSTEM SET local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=10.101.5.73)(PORT=1521))))' SCOPE=MEMORY SID='momo1';

Fri Jun 07 14:58:27 2013

NOTE: Loaded library: System

Fri Jun 07 14:58:27 2013

SUCCESS: diskgroup ASM1 was mounted

Fri Jun 07 14:58:28 2013

NOTE: dependency between database momorac and diskgroup resource ora.ASM1.dg is established

Fri Jun 07 14:58:34 2013

Successful mount of redo thread 1, with mount id 1497705681

Database mounted in Shared Mode (CLUSTER_DATABASE=TRUE)

Lost write protection disabled

Fri Jun 07 14:58:35 2013

Completed: ALTER DATABASE  MOUNT

SQL>

SQL> alter database archivelog;

Database altered.

Completed: ALTER DATABASE  MOUNT

Fri Jun 07 15:00:17 2013

alter database archivelog

Completed: alter database archivelog

SQL> shutdown immediate

ORA-01109: database not open

Database dismounted.

ORACLE instance shut down.

SQL>

SQL> host srvctl start database -d momorac

SQL> host srvctl status database -d momorac

Instance momo1 is running on node node1

Instance momo2 is running on node node2

Instance momo3 is running on node node3

SQL>

SQL> conn / as sysdba

Connected.

SQL> archivg log list;

SP2-0734: unknown command beginning "archivg lo..." - rest of line ignored.

SQL> archive log list;

Database log mode              Archive Mode

Automatic archival            Enabled

Archive destination            USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence    20

Next log sequence to archive  21

Current log sequence          21

SQL>

node2 node3上查看一下

[oracle@node2 ~]$ db_env

momo2

ORACLE_SID= momo2

[oracle@node2 ~]$ sqlplus /nolog

SQL*Plus: Release 11.2.0.3.0 Production on Fri Jun 7 15:05:33 2013

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

SQL> conn / as sysdba

Connected.

SQL> archiveg log list;

SP2-0734: unknown command beginning "archiveg l..." - rest of line ignored.

SQL> archive log list;

Database log mode              Archive Mode

Automatic archival            Enabled

Archive destination            USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence    14

Next log sequence to archive  15

Current log sequence          15

SQL>

[oracle@node3 ~]$ db_env

momo3

ORACLE_SID= momo3

[oracle@node3 ~]$ sqlplus /nolog

SQL*Plus: Release 11.2.0.3.0 Production on Fri Jun 7 15:05:25 2013

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

SQL> conn / as sysdba

Connected.

SQL> archiveg log list;

SP2-0734: unknown command beginning "archiveg l..." - rest of line ignored.

SQL> archive log list;

Database log mode              Archive Mode

Automatic archival            Enabled

Archive destination            USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence    7

Next log sequence to archive  8

Current log sequence          8

SQL>

SQL> Select NAME, INST_ID, OPEN_MODE, CREATED, LOG_MODE, CHECKPOINT_CHANGE#, ARCHIVE_CHANGE# from GV$DATABASE;

NAME        INST_ID OPEN_MODE            CREATED  LOG_MODE    CHECKPOINT_CHANGE# ARCHIVE_CHANGE#

--------- ---------- -------------------- --------- ------------ ------------------ ---------------

MOMORAC            3 READ WRITE          04-JUN-13 ARCHIVELOG              2869044        2583268

MOMORAC            1 READ WRITE          04-JUN-13 ARCHIVELOG              2869044        2583268

MOMORAC            2 READ WRITE          04-JUN-13 ARCHIVELOG              2869044        2583268

SQL>

这样竟然也可以？

SQL> alter system switch logfile;

System altered.

SQL>