ORA-00215: must be at least one control file
Cause: No control file is specified or the control file specified does not exist.
Action: Specify at least one valid control file and retry the operation
ORA-00215: must be at least one control file
Cause: No control file is specified or the control file specified does not exist.
Action: Specify at least one valid control file and retry the operation
ORA-00214: control file ‘string’ version string inconsistent with file ‘string’ version string
Cause: An inconsistent set of control files, datafiles/logfiles, and redo files was used.
Action: Use a consistant set of control files, datafiles/logfiles, and redo log files. That is, all the files must be for the same database and from the same time period.
ORA-00213: cannot reuse control file; old file size string, string required
Cause: To reuse a control file, it must be the same size as the one previously used.
Action: Either do not specify REUSE, or specify a matching combination of MAXDATAFILES, MAXLOGFILES, MAXLOGMEMBERS, MAXLOGHISTORY, and MAXINSTANCES clauses in the CREATE DATABASE or CREATE CONTROLFILE statement.
ORA-00212: block size string below minimum required size of string bytes
Cause: The block size specified was too small. Space for the system overhead is required.
Action: Specify a larger block size and retry the operation.
ORA-00211: control file does not match previous control files
Cause: A control file was specified that belongs to another database.
Action: Find and install the correct control file.
ORA-00210: cannot open the specified control file
Cause: Cannot open the control file.
Action: Check to make sure the control file exists and is not locked by some other program.
ORA-00209: control file blocksize mismatch, check alert log for more info
Cause: The block size in the control file header does not match the size specified in the DB_BLOCK_SIZE parameter.
Action: Look at the alert log for more information.
ORA-00208: number of control file names exceeds limit of string
Cause: An attempt was made to use more control files than Oracle supports.
Action: Shut down Oracle. Reduce the number of control files specified in the CONTROL_FILES parameter in the initialization parameter file, and restart Oracle. Delete usused files.
ORA-00207: control files are not for the same database
Cause: The database ID in the control file is not the same as the database ID in the control file used by the first instance to mount this database. Most likely one of the mounts used the wrong control file or there are two databases with the same name.
Action: Check that the control file is for the correct database and is not an old version.
ORA-00206: error in writing (block string, # blocks string) of control file
Cause: A disk I/O failure was detected on writing the control file.
Action: Check if the disk is online, if it is not, bring it online and try a warm start again. If it is online, then you need to recover the disk.