Recreate control files oracle 11g

Examples of non-circular control file sections the ones that can only expand. These records contain noncritical information that is eligible to be overwritten if needed. When all available record slots are full, the database either expands the control file to make room for a new record or overwrites the oldest record. Examples include records about:. Most of the reusable section of the control file contains RMAN backup information.

If you want to change the name of the database, we need to recreate the control file by generating a text-based control file by executing the following command. The above command creates a text-based control file either in udump directory or trace directory.

Also read, Controlfile management activity. Thank you for giving your valuable time to read the above information. I hope the content served your purpose in reaching out the blog. Specify the maximum number of online redo log file groups that can ever be created for the database. Oracle Database uses this value to determine how much space to allocate in the control file for the names of redo log files. The default and maximum values depend on your operating system. The value that you specify should not be less than the greatest GROUP value for any redo log file group.

Specify the maximum number of members, or identical copies, for a redo log file group. The minimum value is 1. The maximum and default values depend on your operating system. This parameter is useful only if you are using Oracle Database in archivelog mode with Real Application Clusters. Specify the maximum number of archived redo log file groups for automatic media recovery of Real Application Clusters.

The database uses this value to determine how much space to allocate in the control file for the names of archived redo log files. The minimum value is 0. The maximum value is limited only by the maximum size of the control file. Specify the maximum number of instances that can simultaneously have the database mounted and open. This clause prepares for the possibility of media recovery as well as instance or system failure recovery. When the database is in this mode, Oracle Database logs all changes in the database except changes to temporary tablespaces and temporary segments.

Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Skip to content. Things to Consider Before Recreating the Controlfile.

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