How do I use multiplex control files?

How do I use multiplex control files?

Multiplexing Control Files using the init.ora file

1. Shut down the database.
2. Copy the control file to more locations using operating system command.
3. Change the initialization parameter to include new file in the parameter CONTROL_FILES.
4. Start the instance.

Why do we use multiplex control files?

Multiplexing in control_file is one of the best practices of oracle database setup. It means keeping control files in different mount point or disk groups , so that in case one mount points is inaccessible, control file can be accessed from the available mount point.

What are the steps to multiplex control file using Pfile and Spfile?

1. SPFILE

1. Step1. 1: Validate existing control files.
2. Step 1.2: Add new control file to SPFILE.
3. Step 1.3: Stop database.
4. Step 1.4: Copy the control file to a new location.
5. Step 1.5: Start the database in normal mode.
6. Step 1.6: Validate control files.
7. Step2.
8. Step 2.2: Create PFILE using SPFILE.

What control file contains in Oracle?

Every Oracle Database has a control file, which is a small binary file that records the physical structure of the database. The control file includes: The database name. Names and locations of associated datafiles and redo log files.

How do I manually create a control in Oracle 11g?

1 Answer

1. Shut down the database.
2. Copy an existing control file to a new location, using operating system commands.
3. Edit the CONTROL_FILES parameter in the database initialization parameter file to add the new control file name, or to change the existing control file name.
4. Restart the database.

How do I redo multiplex log files?

To multiplex your redo log, you must add members to each redo log group. It is not required that redo log groups be symmetrical, but Oracle recommends that your groups all have the same number of members. A database must have a minimum of two redo log groups.

How many control file we should have what is best practice?

Attention: Oracle strongly recommends that your database has a minimum of two control files on different disks.

What is Pfile and Spfile in Oracle?

PFILE stands for the parameter file. It is a text file which can be modified by a text editor. With the help, PFILE Oracle server start an Oracle Instance. What is SPFILE? SPFILE stands for the server parameter file.