1,查看当前的ControlFile目录
SQL> select * from v$controlfile;
STATUS NAME IS_ BLOCK_SIZE FILE_SIZE_BLKS
------- ------------------------------------------------------------ --- ---------- --------------
/u01/app/oracle/admin/anbob/controlfile/anbob01.ctl NO 16384 594
/u01/app/oracle/admin/anbob/controlfile/anbob02.ctl NO 16384 594
2,查看可用asm diskgroup
SQL> select name,total_mb,free_mb from v$asm_diskgroup;
NAME TOTAL_MB FREE_MB
------------------------------------------------------------ ---------- ----------
DATA 9201 4176
3,restart db到nomount状态
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup nomount
ORACLE instance started.
4，切到rman复制controlfile，并做两个冗余
RMAN> restore controlfile to '+DATA' from '/u01/app/oracle/admin/anbob/controlfile/anbob01.ctl';
Starting restore at 11-SEP-12
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=19 device type=DISK
channel ORA_DISK_1: copied control file copy
Finished restore at 11-SEP-12
RMAN> restore controlfile to '+DATA' from '/u01/app/oracle/admin/anbob/controlfile/anbob01.ctl';
RMAN> restore controlfile to '+DATA' from '/u01/app/oracle/admin/anbob/controlfile/anbob01.ctl';
5，切换到ASM OWNER用户，查看生成的controlfile 文件名
[oracle@rac1 controlfile]$ su - grid
[grid@rac1 ~]$ asmcmd
ASMCMD> ls
DATA/
tip:
usage: find [--type ]
[grid@rac1 ~]$ asmcmd ASMCMD> find --type controlfile . * +DATA/ANBOB/CONTROLFILE/current.260.793738081 +DATA/ANBOB/CONTROLFILE/current.261.793738087 +DATA/ANBOB/CONTROLFILE/current.276.793737555 ASMCMD> cd DATA/ANBOB/CONTROLFILE/ ASMCMD> ls -l Type Redund Striped Time Sys Name CONTROLFILE HIGH FINE SEP 11 18:00:00 Y current.260.793738081 CONTROLFILE HIGH FINE SEP 11 18:00:00 Y current.261.793738087 CONTROLFILE HIGH FINE SEP 11 18:00:00 Y current.276.793737555
6,切到数据库，修改controlfile路径，如果是pfile，用文件编辑工具修改control_files值，如果是用spfile,执行下面的命令
SQL> show parameter spfile
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
spfile string +DATA/anbob/spfileanbob.ora
SQL> show parameter control
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time integer 7
control_files string /u01/app/oracle/admin/anbob/co
ntrolfile/anbob01.ctl, /u01/ap
p/oracle/admin/anbob/controlfi
le/anbob02.ctl
control_management_pack_access string DIAGNOSTIC+TUNING
SQL> alter system set control_files='+DATA/ANBOB/CONTROLFILE/current.260.793738081','+DATA/ANBOB/CONTROLFILE/current.261.793738087','+DATA/ANBOB/CONTROLFILE/current.276.793737555' scope=spfile;
7，重启打开数据库并验证controlfile 路径
SQL> shutdown immediate
ORA-01507: database not mounted
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 523108352 bytes
Fixed Size 1337632 bytes
Variable Size 415237856 bytes
Database Buffers 100663296 bytes
Redo Buffers 5869568 bytes
Database mounted.
Database opened.
SQL> show parameter control_files
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
control_files string +DATA/anbob/controlfile/curren
t.260.793738081, +DATA/anbob/c
ontrolfile/current.261.7937380
87, +DATA/anbob/controlfile/cu
rrent.276.793737555
8，删除原控制文件，已旧
[oracle@rac1 controlfile]$ rm /u01/app/oracle/admin/anbob/controlfile/anbob01.ctl
[oracle@rac1 controlfile]$ rm /u01/app/oracle/admin/anbob/controlfile/anbob02.ctl
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2014-12-25 14:29:58 |
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