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THE CONTROL FILE ERROR#ORA-00205#ORA-00202

I met the ORA-00205 error while I modified the control_files parameter just like the following steps…

SYS@PRODCDB> alter system set control_files=’/data/app/oracle/oradata/PRODCDB/control00001.ctl, /data/app/oracle/fast_recovery_area/PRODCDB/control02.ctl, /data/app/oracle/oradata/PRODCDB/control00003.ctl’ scope=spfile;
System altered.
SYS@PRODCDB> shu immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SYS@PRODCDB> !cp /data/app/oracle/fast_recovery_area/PRODCDB/control02.ctl /data/app/oracle/oradata/PRODCDB/control00001.ctl
SYS@PRODCDB> !cp /data/app/oracle/fast_recovery_area/PRODCDB/control02.ctl /data/app/oracle/oradata/PRODCDB/control00003.ctl
SYS@PRODCDB> startup
ORACLE instance started.
Total System Global Area 838860800 bytes
Fixed Size 2929936 bytes
Variable Size 608176880 bytes
Database Buffers 222298112 bytes
Redo Buffers 5455872 bytes
ORA-00205: error in identifying control file, check alert log for more info
SYS@PRODCDB>

What is the reason???

We can check the alert log for detail informations

ORA-00210: cannot open the specified control file
ORA-00202: control file: ‘/data/app/oracle/oradata/PRODCDB/control01.ctl,/data
/app/oracle/fast_recovery_area/PRODCDB/control02.ctl,/data/app/oracle/oradata/PRO
DCDB/control03.ctl’
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3

Do you understand what is the reason???

The comma position!!!! We should be very careful with the parameter.

Reset the control_files and restartup

Use the following steps, we can starup the database.

SYS@PRODCDB> startup nomount;
ORACLE instance started.
Total System Global Area 838860800 bytes
Fixed Size 2929936 bytes
Variable Size 608176880 bytes
Database Buffers 222298112 bytes
Redo Buffers 5455872 bytes
SYS@PRODCDB>
SYS@PRODCDB> alter system set control_files=’/data/app/oracle/oradata/PRODCDB/control00001.ctl’,’/data/app/oracle/fast_recovery_area/PRODCDB/control02.ctl’,’/data/app/oracle/oradata/PRODCDB/control00003.ctl’ scope=spfile;
System altered.
SYS@PRODCDB>
SYS@PRODCDB> shu immediate;
ORA-01507: database not mounted
ORACLE instance shut down.
SYS@PRODCDB> startup
ORACLE instance started.
Total System Global Area 838860800 bytes
Fixed Size 2929936 bytes
Variable Size 608176880 bytes
Database Buffers 222298112 bytes
Redo Buffers 5455872 bytes
Database mounted.
Database opened.
SYS@PRODCDB>

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