【ORACLE】重写控制文件

[oracle@rac01 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Thu Mar 15 23:45:02 2018

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup

ORACLE instance started.

Total System Global Area  784998400 bytes

Fixed Size                    2257352 bytes

Variable Size                  541068856 bytes

Database Buffers          239075328 bytes

Redo Buffers                    2596864 bytes

ORA-00205: error in identifying control file, check alert log for more info

CREATE CONTROLFILE REUSE DATABASE "proc" NORESETLOGS  NOARCHIVELOG

    MAXLOGFILES 16

    MAXLOGMEMBERS 3

    MAXDATAFILES 100

    MAXINSTANCES 8

    MAXLOGHISTORY 292

LOGFILE

  GROUP 1 '+DATA/proc/onlinelog/group_1.257.965585459'  SIZE 50M BLOCKSIZE 512,

  GROUP 2 '+DATA/proc/onlinelog/group_2.258.965585467' SIZE 50M BLOCKSIZE 512,

  GROUP 3 '+DATA/proc/onlinelog/group_3.265.965591745' SIZE 50M BLOCKSIZE 512,

  GROUP 4 '+DATA/proc/onlinelog/group_4.266.965591749' SIZE 50M BLOCKSIZE 512,

  GROUP 5 '+DATA/proc/onlinelog/group_5.268.966135797' SIZE 50M BLOCKSIZE 512,

  GROUP 6 '+DATA/proc/onlinelog/group_6.269.966135801' SIZE 50M BLOCKSIZE 512,

  GROUP 7 '+DATA/proc/onlinelog/group_7.270.966135807' SIZE 50M BLOCKSIZE 512,

  GROUP 8 '+DATA/proc/onlinelog/group_8.271.966135869' SIZE 50M BLOCKSIZE 512,

  GROUP 9 '+DATA/proc/onlinelog/group_9.272.966135875' SIZE 50M BLOCKSIZE 512,

  GROUP 10 '+DATA/proc/onlinelog/group_10.273.966135881'  SIZE 50M BLOCKSIZE 512

-- STANDBY LOGFILE

DATAFILE

  '+DATA/proc/datafile/SYSAUX.260.965585511',

  '+DATA/proc/datafile/SYSTEM.259.965585479',

   '+DATA/proc/datafile/UNDOTBS1.261.965585527',

  '+DATA/proc/datafile/UNDOTBS2.263.965585563',

   '+DATA/proc/datafile/USERS.264.965585575'

CHARACTER SET AL32UTF8

-- 在节点1的 nomount状态下执行报错

ORA-01503: CREATE CONTROLFILE failed

ORA-12720: operation requires database is in EXCLUSIVE mode

-- 解决方案

关闭其他节点，保留节点1，并修改节点1的参数文件

SQL> alter system set cluster_database=FALSE scope=spfile sid='*';

System altered.

SQL> shutdown immediate

-- 再次启动数据库到nomount状态，再重建控制文件就可以了

--启动数据库到open状态

SQL> alter database open;

Database altered.

-- 发现asm磁盘组中的控制文件自己生成了

ASMCMD> ls

Current.256.970878297

control02.ctl

-- 启动节点2，说是不能在独占模式下启动数据库

SQL> startup

ORA-01102: cannot mount database in EXCLUSIVE mode

-- 因为控制文件重建了，所以要将参数cluster_database改为true,并从spfile生成pifle，并重启

SQL> alter system set cluster_database=true scope=spfile sid='*';

SQL> create pfile from spfile='注意路径';

SQL> shutdown immediate;

ORA-01109: database not open

Database dismounted.

ORACLE instance shut down.

SQL>

SQL> startup

ORACLE instance started.

Total System Global Area  784998400 bytes

Fixed Size                    2257352 bytes

Variable Size                  541068856 bytes

Database Buffers          239075328 bytes

Redo Buffers                    2596864 bytes

Database mounted.

Database opened.

SQL>  show parameter cluster_database;

NAME                                     TYPE         VALUE

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

cluster_database                     boolean         TRUE

cluster_database_instances             integer         2

File created.

-- 发现节点可以启动到nomount状态了，可是在mount状态依然报错

SQL> startup nomount;

ORACLE instance started.

Total System Global Area  784998400 bytes

Fixed Size                    2257352 bytes

Variable Size                  620760632 bytes

Database Buffers          159383552 bytes

Redo Buffers                    2596864 bytes

SQL>

SQL> alter database mount;

alter database mount

*

ERROR at line 1:

ORA-00205: error in identifying control file, check alert log for more info

-- 查看一下告警日志，可以看到它还在找原来的控制文件，说明spfile没有写入pfile

ORA-00210: cannot open the specified control file

ORA-00202: control file: '+FRA/proc/controlfile/current.256.965585457'

ORA-17503: ksfdopn:2 Failed to open file +FRA/proc/controlfile/current.256.965585457

ORA-15012: ASM file '+FRA/proc/controlfile/current.256.965585457' does not exist

-- 查看spfile发现没有路径

SQL> show parameter spfile

NAME                                     TYPE         VALUE

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

spfile                                     string

-- 重新设置spfile路径

SQL> alter system set spfile ='+data/proc/spfileproc.ora';

-- 重启

SQL> shutdown immediate;

ORA-01507: database not mounted

ORACLE instance shut down.

SQL> startup nomount;

ORACLE instance started.

Total System Global Area  784998400 bytes

Fixed Size                    2257352 bytes

Variable Size                  620760632 bytes

Database Buffers          159383552 bytes

Redo Buffers                    2596864 bytes

SQL> alter database mount;

Database altered.

SQL> alter database open;

Database altered.