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Oracle9i Database Reference
Release 2 (9.2)

Part Number A96536-02
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Parameter type



CONTROL_FILES = filename [, filename [...] ]

Note: The control file name can be an OMF (Oracle Managed Files) name. This occurs when the control file is re-created using the CREATE CONTROLFILE REUSE statement.

Default value

Operating system-dependent

Parameter class


Range of values

1 to 8 filenames

Real Application Clusters

Multiple instances must have the same value.

Every database has a control file, which contains entries that describe the structure of the database (such as its name, the timestamp of its creation, and the names and locations of its datafiles and redo files). CONTROL_FILES specifies one or more names of control files, separated by commas.

Oracle Corporation recommends that you multiplex multiple control files on different devices or mirror the file at the operating system level.

See Also: