『ORACLE』RAC—控制文件多路径复制

Posted 2020-09-14 九號客栈

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查看当前控制文件数量及位置、名称

[email protected] rac1>show parameter control_files;

NAME TYPE VALUE
-------------------------------------------- ------------ ----------------------------------------------------
control_files string +DATA/racdb/controlfile/current.260.942339579,

关闭数据库并将一个节点启动到nomount

[[email protected] ~]$ srvctl stop database -d racdb
[[email protected] ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Thu Apr 27 23:37:51 2017

Connected to an idle instance.

[email protected] rac1>startup nomount;
ORACLE instance started.

Total System Global Area 835104768 bytes
Fixed Size 2257840 bytes
Variable Size 603982928 bytes
Database Buffers 226492416 bytes
Redo Buffers 2371584 bytes

利用RMAN创建控制文件

[[email protected] ~]$ rman target /

Recovery Manager: Release 11.2.0.4.0 - Production on Thu Apr 27 23:45:55 2017

connected to target database: RACDB (not mounted)

RMAN> restore controlfile to ‘+DATA‘ from ‘+DATA/RACDB/CONTROLFILE/Current.260.942339579‘;

Starting restore at 27-APR-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=34 instance=RACDB1 device type=DISK

channel ORA_DISK_1: copied control file copy
Finished restore at 27-APR-17

RMAN> restore controlfile to ‘+DATA‘ from ‘+DATA/RACDB/CONTROLFILE/Current.260.942339579‘;

Starting restore at 27-APR-17
using channel ORA_DISK_1

channel ORA_DISK_1: copied control file copy
Finished restore at 27-APR-17

查看已生成的控制文件

[[email protected] ~]$ asmcmd
ASMCMD> cd DATA/RACDB/CONTROLFILE
ASMCMD> pwd
+DATA/RACDB/CONTROLFILE
ASMCMD> ls
Current.260.942339579
current.269.942446013
current.270.942447435

此时1节点应该在nmount

[email protected] rac1>select inst_id,host_name,status from gv$instance;

INST_ID HOST_NAME STATUS
---------- ---------------------------------------------------------------- ------------
1 rac1 OPEN

[email protected] rac1>alter system set control_files=
2 ‘+DATA/RACDB/controlfile/Current.260.942339579‘,
3 ‘+DATA/RACDB/controlfile/current.269.942450435‘,
4 ‘+DATA/RACDB/controlfile/current.270.942450415‘ scope=spfile;

System altered.

[email protected] rac1>shutdown immediate
ORA-01507: database not mounted

ORACLE instance shut down.
[email protected] rac1>exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
[[email protected] ~]$ srvctl start database -d racdb
[[email protected] ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Thu Apr 27 23:50:46 2017

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

[email protected] rac1>select inst_id,name from gv$controlfile;

INST_ID NAME

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

1 +DATA/racdb/controlfile/current.260.942339579

1 +DATA/racdb/controlfile/current.269.942450435

1 +DATA/racdb/controlfile/current.270.942450415

2 +DATA/racdb/controlfile/current.260.942339579

2 +DATA/racdb/controlfile/current.269.942450435

2 +DATA/racdb/controlfile/current.270.942450415

6 rows selected.