check_controlfile_mirror 

ORACLE offers the possibility to mirror the control files. SAPDBA can check the presence and validity of the control files and their ORACLE mirrors. See also check_initial_settings.

Default value: Y

Possible values: Y/N (Y(es) - control file check is executed, N(o) - control file check is not executed).

The setting Y (es) means that, on starting up, SAPDBA issues a warning if one of the control files defined in init<DBSID>.ora is not present or invalid. Only then does the initial menu appear. If SAPDBA is already running, this check is performed when ORACLE reads the file init<DBSID>.ora (e.g. on starting the database).

See also Mirroring the Control File.